Best Free OCR Software and Tools in 2026: 12 Compared, Tested on 8 Languages
Short answer
The best OCR tool depends on the file. Among free OCR tools, we pick FastOCR (we make it) for photos, screenshots and scans in 100+ languages: no sign-up or watermark for images, and text, a searchable PDF, Word and Markdown from one upload. PDF24 makes scanned PDFs searchable with no account, Google Drive suits small files, and FastOCR's free Mac and Windows apps work offline.
By the FastOCR team · Updated 4 November 2026 · Accuracy test run 31 October 2026
We make FastOCR. Accuracy figures come from our own test of each tool on the same scans, ours included; other facts link to each tool's own pages. How we tested
Try it here
Drop your file here
PDF, PNG, JPG, WebP, BMP, HEIC
PDF up to 1 GB · images up to 20 MB
Tips for a clear photo
- Lay the page flat.
- Use even light, with no shadows.
- Turn off the flash to avoid glare.
- Fill the frame with the page.
Verdict
Pick FastOCR if
- You have a photo, screenshot or scan and want text, a searchable PDF, Word and Markdown without making an account.
- Your page is Arabic, Urdu, Bengali, Tamil or Chinese. FastOCR got 1.0% to 9.1% of characters wrong on those pages in our test (lower is better).
- You want free OCR software that runs offline on a Mac or a Windows PC.
- You also need translation, AI Polish, an API, or bank statements in Excel.
Pick another tool if
- You want a scanned PDF that is not right-to-left made searchable in the browser with no account: PDF24.
- Your scans are Hindi: OCR.space Engine 3 beat FastOCR clearly on Hindi in our test. FastOCR tied on Persian, where OCR.space Engine 3 scored lower, inside the noise.
- You work in Google Docs and your files are 2 MB or smaller: Google Drive.
- You want an open-source engine you can script: Tesseract.
Best for
- Photos, screenshots and scans in 100+ languages, no account: FastOCROur tool
Text, a searchable PDF, Word and Markdown from one upload, with no sign-up or watermark. It got 9.1% of the characters on our Urdu page wrong, where Tesseract got 55.3% wrong (lower is better).
- Free OCR software that works offline: FastOCROur tool
Free Mac and Windows apps (public beta) make searchable PDFs, text, Word and Markdown, and your files never leave the computer.
- A scanned PDF that is not right-to-left, no registration:
- Text from a small file inside Google Docs: Google Drive
Free with your Google Drive. Files should be 2 MB or smaller, and the help page says tables and columns are not likely to be detected.Source
- Hindi scans, and a free API to prototype with:
- One image to text or Markdown, no account: imagetotext.info
No registration, and it exports text, Word, HTML and Markdown. It read our Arabic, Urdu, Hindi and Bengali pages about as well as FastOCR.Source
- Many images with no account:
- Open-source OCR you run yourself:
- PDFs in a PDF toolkit you already use:
- A single page, deleted fast:
- Documents in Latin scripts, Chinese, Japanese or Korean, when you want Word or Excel back: OnlineOCR.net
Guests can convert 5 files an hour with no signup and get Word, Excel, text, PDF or RTF back.Source
- A Latin-script, Chinese or Japanese PDF when you already have an Adobe account: Adobe Acrobat online
Free to run; you sign in to download the searchable PDF.Source
- A first try on one short document:
Comparison table
| Tool | Free use without sign-up | Free limit, as advertised | Outputs | Non-Latin scripts named |
|---|---|---|---|---|
| FastOCR (our tool)Our tool | Free use without sign-upImages: yes. PDFs: free account. | Free limit, as advertisedSmall daily image cap without an account; signing in lifts it. See pricing. | OutputsText, searchable PDF, Word, Markdown | Non-Latin scripts named100+ languages, detected automatically |
| Google Drive | Free use without sign-upWorks from your Google DriveSource | Free limit, as advertisedFiles 2 MB or smallerSource | OutputsA Google DocSource | Non-Latin scripts namedArabic, Urdu, Persian, Hindi, Bengali, Tamil, Chinese, HebrewSource |
| PDF24 | Free use without sign-upYes, no registrationSource | Free limit, as advertisedNo time restrictions; funded by adsSource | OutputsSearchable PDF or PDF/ASource | Non-Latin scripts namedArabic, Urdu, Persian, Hindi, Bengali, Tamil, Chinese, HebrewSource |
| iLovePDF | Free use without sign-upNot statedSource | Free limit, as advertisedLimited document processingSource | OutputsSearchable PDFSource | Non-Latin scripts namedArabic, Urdu, Persian, Hindi, Bengali, Tamil, Chinese, HebrewSource |
| Adobe Acrobat online | Free use without sign-upSign-in needed to downloadSource | Free limit, as advertisedPDFs only; images need the Acrobat Pro trialSource | OutputsSearchable PDFSource | Non-Latin scripts namedChinese and Japanese; others not statedSource |
| OCR.space | Free use without sign-upYes, no registrationSource | Free limit, as advertised5 MB per document; free API: 1 MB files, 3 PDF pagesSource | OutputsText, JSON, searchable PDF (watermarked on the free API)Source | Non-Latin scripts namedArabic, Persian, Hindi, Tamil, Chinese, Hebrew; Urdu and Bengali not namedSource |
| imagetotext.info | Free use without sign-upYes, no registrationSource | Free limit, as advertisedOne file at a time; more needs an upgradeSource | OutputsText, Word, HTML, MarkdownSource | Non-Latin scripts namedArabic, Chinese, Japanese, Korean, ThaiSource |
| i2OCR | Free use without sign-upNot statedSource | Free limit, as advertisedOne image or PDF page per runSource | OutputsText, Word, HTML, searchable PDFSource | Non-Latin scripts named128 languages, including Arabic, Urdu, Persian, Hindi, Bengali, TamilSource |
| NewOCR | Free use without sign-upYes, no registrationSource | Free limit, as advertisedNo limit on the number of filesSource | OutputsTXT, DOC, PDFSource | Non-Latin scripts named122 languages, including Arabic, Urdu, Persian, Hindi, Bengali, TamilSource |
| Tesseract | Free use without sign-upOpen source; you install itSource | Free limit, as advertisedFree under the Apache LicenseSource | OutputsText, hOCR, PDF, TSV, ALTOSource | Non-Latin scripts namedMore than 100 languages, including Arabic, Urdu, Hindi, BengaliSource |
| OnlineOCR.net | Free use without sign-upYes, as a guestSource | Free limit, as advertisedGuests: 5 files an hour, 15 MB eachSource | OutputsWord, Excel, text, PDF, RTFSource | Non-Latin scripts namedChinese, Japanese, Korean; does not list Arabic, Urdu, Persian, Hindi, Bengali or TamilSource |
| Convertio | Free use without sign-upFor the first 10 pagesSource | Free limit, as advertised10 pages, then sign upSource | OutputsWord, Excel, searchable PDF, textSource | Non-Latin scripts namedArabic, Chinese, Hebrew, Thai; not Urdu, Persian, Hindi or BengaliSource |
Why FastOCR
Photos and screenshots
Every image upload gets raw text and a single-page searchable PDF, plus Word and Markdown.
See Photos and screenshotsScanned PDFs
Scanned PDF in, searchable PDF out; text copies in the right order, including right-to-left.
See Scanned PDFsLanguages
100+ languages, detected automatically, including mixed pages.
Share of characters wrong on our evidence scans (lower is better): Arabic 2.6%, Urdu 9.1%, Bengali 7.4%, Tamil 2.2%, Chinese 1.0%.
See LanguagesFree use
Images: free, no sign-up, no watermark. PDFs: free account.
See Free useOffline desktop apps
Free offline Mac and Windows apps (public beta): searchable PDF, text, Word and Markdown, nothing leaves your computer.
See Offline desktop apps
Proof
Among the free tools we ran, FastOCR was clearly ahead of Tesseract and PDF24 on Urdu and Persian and level with imagetotext.info on Arabic and Urdu. OCR.space Engine 3 beat it on Hindi. FastOCR tied on Persian, where OCR.space Engine 3 scored lower, inside the noise. Tools behind a CAPTCHA or sign-in were not run. Lower is better.
The scan: a page of the Urdu book Tota Kahani (written 1801)
First body line, as printed (Wikisource transcription)
احسان اُس خدا کا کہ جس نے دریائے سخن کو اپنے ابر کرم سے گو ہرِ معنی بخشا اور زبان کو واسطے اپنی
- 9.1% of characters wrong
FastOCR
published by us
احسان اُس خدا کا کہ جس نے دریائے سخن کو اپنے ابر کرم سے گو ہر معنی بخشا اور زبان کو واسطے اپنی
- 9.2% of characters wrong
imagetotext.info
free web tool
احسان اُس خدا کا کہ جس نے دریائے سخن کو اپنے ابر کرم سے گو ہر معنی بخشا اور زبان کو واسطے اپنی
- 30.4% of characters wrong
OCR.space
default Engine 2
احسان أس مداكاكيج سنءريات سخن كواب ابركرم ← كوبر معى تختا اورزيان كوداسطيى
- 55.3% of characters wrong
Tesseract 5.5.4
the engine NewOCR says it uses
ا احمان اس دا اجس ےه در را سخ نکو ان ارک سےکوس ین یناد زا نک ری
- 99.6% of characters wrong
OnlineOCR.net
no Urdu option
tA)K11 tAirk.,....11.30,t4 ikitt r CIO 4 %;114iiii
% of characters wrong by script, lower is better
- FastOCR
- OCR.space Engine 3
- imagetotext.info
- OCR.space default Engine 2
- Tesseract 5.5.4 (the engine NewOCR says it uses)
- PDF24
- Persian
- FastOCR 10.5%OCR.space E3 7.8%OCR.space E2: Not supportedTesseract 80.0%PDF24 79.1%
- Chinese
- FastOCR 1.0%OCR.space E3: No scoreOCR.space E2 3.0%Tesseract 71.9%PDF24 3.2%
- Urdu
- FastOCR 9.1%OCR.space E3 19.6%imagetotext.info 9.2%OCR.space E2 30.4%Tesseract 55.3%PDF24 69.0%
- Bengali
- FastOCR 7.4%OCR.space E3 11.2%imagetotext.info 7.9%OCR.space E2 100.0%Tesseract 31.7%PDF24 18.6%
- Arabic
- FastOCR 2.6%OCR.space E3 2.9%imagetotext.info 2.9%OCR.space E2: Not supportedTesseract 20.4%PDF24 35.5%
- Hindi
- FastOCR 13.2%OCR.space E3 2.7%imagetotext.info 14.5%OCR.space E2: Not supportedTesseract 15.9%PDF24 17.2%
- Tamil
- FastOCR 2.2%OCR.space E3: No scoreOCR.space E2 99.8%Tesseract 8.5%PDF24 9.2%
- English
- FastOCR 3.3%OCR.space E3: No scoreOCR.space E2 4.5%Tesseract 8.5%PDF24 10.1%
Free OCR accuracy test: the same 8 pages in 8 languages
Limits tables do not show whether the text comes out right, so we ran eight public-domain scanned book pages, one each in Arabic, Urdu, Persian, Hindi, Bengali, Tamil, Chinese and English, through the free tools we could reach. Each result was scored against the page's Wikisource text as the share of characters wrong, so lower is better.
In our test of 8 scanned pages, FastOCR had the lowest or tied-lowest error rate on 7 (gaps under 3 points count as ties). On the English page every tool we scored got between 3.3% and 10.1% of characters wrong. The gap opens on other scripts. Even with the right language pack, Tesseract got 55.3% of the Urdu page's characters wrong, 80.0% of the Persian page and 71.9% of the Chinese page. FastOCR got 9.1%, 10.5% and 1.0% wrong on the same pages. Lower is better.
Some free tools did as well as FastOCR, and one did clearly better on Hindi. Lower is better in every number here:
- imagetotext.info: Arabic 2.9%, Urdu 9.2%, Hindi 14.5% and Bengali 7.9% of characters wrong, against FastOCR's 2.6%, 9.1%, 13.2% and 7.4%.
- OCR.space Engine 3: Hindi 2.7%, clearly better than FastOCR's 13.2%; Persian 7.8% against 10.5%, inside the test noise, so a tie; but Urdu 19.6%.
- OCR.space's default Engine 2 rejected the Arabic, Hindi and Persian pages and got 100% of the Bengali page wrong.
- PDF24 got 69.0% of the Urdu page and 79.1% of the Persian page wrong; its Chinese (3.2%) was close to FastOCR's.
- OnlineOCR.net has no Urdu option, so our Urdu page came back as Latin letters, 99.6% wrong.
- Smallpdf has no language menu. Its Arabic result was 99.1% wrong, and the next download was refused as "out of free downloads".
If one of these tools already fits your work, accuracy alone is not a reason to switch. Where FastOCR differs is what you get after the text is read: a searchable PDF that copies in the right order, Word and Markdown files, and no account for images. Caveats are in how we tested.
Free offline OCR software for Mac and Windows
If you want OCR software on your own computer rather than a website, FastOCR has free desktop apps for Mac and Windows, in public beta. They turn scanned PDFs and images into searchable PDFs, plain text, Word and Markdown. They need no account, work offline and never upload your files.
The apps read text with the recognition built into the operating system: Apple's on the Mac and Windows OCR on Windows. That is not the website's engine, so the test numbers on this page do not apply to them. The Windows app asks you to pick a language that Windows has an OCR pack for, and links to the website for the rest. Translation, AI Polish and bank statements stay on the website.
The Mac app needs macOS 13 or later; the Windows app needs Windows 10 version 22H2 or Windows 11, 64-bit (x64). Both are unsigned betas, so macOS and Windows SmartScreen show a warning the first time you open them.
Other free OCR software: Tesseract is open source but has no built-in window, and PDF24's OCR page offers a desktop app download as well.
If you can pay, desktop suites name more recognition languages than FastOCR does: ABBYY FineReader PDF lists 198 and offers a 7-day trial, and Readiris lists 138 with a free trial download. See FastOCR vs ABBYY FineReader and OCR software for scanned documents.
1. FastOCR (our tool)
- Best for
- Photos and scans in any of its languages, and PDFs in right-to-left or Chinese, Japanese and Korean scripts where copy and search must work afterwards.
- Watch out for
- A small daily image cap until you sign in, and PDFs need a free account. Handwriting and poor scans need a proofread, as with any OCR tool.
FastOCR reads photos, screenshots and scanned pages in 100+ languages and detects the language itself, including pages that mix scripts. Images need no account and carry no watermark. Each image comes back as raw text and a single-page searchable PDF, with Word and Markdown downloads. To try it now, use free OCR online on the home page.
Scanned PDFs come back as searchable PDFs whose text copies in the right order, including right-to-left Arabic, Urdu and Hebrew. PDFs need a free account. A finished image can be translated or cleaned up with AI Polish.
Also from FastOCR:
- Free offline Mac and Windows apps, in public beta.
- A Chrome extension that copies text from anything on screen.
- Free PDF tools that run in your browser: merge, compress, split, sign and more.
- Bank statements to Excel, CSV and QuickBooks.
- A REST API, Python SDK and MCP server for AI agents, plus LangChain and LlamaIndex loaders.
In our test: FastOCR got 9.1% of the Urdu page's characters wrong, 10.5% of the Persian page and 1.0% of the Chinese page (lower is better). Its Hindi (13.2%) trailed OCR.space Engine 3 (2.7%).
Searchable PDF that copies in reading order
احسان اُس خدا کا کہ جس نے دریائے سخن کو اپنے ابر کرم سے گو ہر معنی بخشا اور زبان کو واسطے اپنی
Select and paste: Urdu, Arabic and Hebrew come out right to left, and two-column pages come out column by column.
Word file with paragraphs and tables
| Item | Qty | Total |
| Paper | 4 | 18.00 |
| Toner | 1 | 64.50 |
Prose reflows into editable paragraphs; ruled tables come back as real Word tables. PDF to Word
Bank statement to Excel, CSV or QuickBooks
| Date | Description | Amount | Balance |
| 09/01 | Rent payment | -1,450.00 | 968.65 |
| 09/02 | Payroll deposit | 2,386.40 | 3,355.05 |
| 09/04 | Grocery store | -84.17 | 3,270.88 |
One row per transaction, for US and UK statements in English (example rows invented). Bank statement converter
2. Google Drive (Google Docs)
- Best for
- Plain text from a small file when you already work in Google Docs.
- Watch out for
- You get a Google Doc, not a searchable PDF, and the help page says lists, tables, columns and footnotes are not likely to be detected.
Google Drive reads text when you open an image or PDF with Google Docs. Its help page says the file should be 2 MB or smaller and that Drive detects the language itself. It lists Arabic, Urdu, Persian, Hindi, Bengali, Tamil, Chinese and Hebrew.
Source: Google Drive Help, checked 4 November 2026. Compare: FastOCR vs Google Drive OCR.
3. PDF24 OCR
- Best for
- A scanned PDF that is not right-to-left, searchable without an account.
- Watch out for
- You pick the language by hand; the page does not mention automatic detection. Right-to-left pages came out poorly in our test.
PDF24 makes scanned PDFs searchable for free. Its page says no registration is required, the tool is paid for by advertising, and files are deleted from its server after one hour. You pick the language by hand from a list that includes Arabic, Urdu, Persian, Hindi, Bengali and Chinese, and you get a searchable PDF or PDF/A back.
In our test: PDF24 got 10.1% of the English page's characters wrong and 3.2% of the Chinese page, but 69.0% of the Urdu page (lower is better).
Source: PDF24 OCR, checked 4 November 2026. Compare: FastOCR vs PDF24.
4. iLovePDF OCR PDF
- Best for
- People who already use iLovePDF to merge, split and compress.
- Watch out for
- The OCR page does not say whether OCR needs an account, and the free limits are not given as numbers. We did not run it in our test.
iLovePDF's OCR PDF tool returns a selectable, searchable PDF. Its language list includes Arabic, Urdu, Persian, Hindi, Bengali, Tamil and Chinese, and the page says detection is more accurate when you select the document's languages. The pricing page describes the free plan as limited document processing and lists an ad-free experience under Premium.
Source: iLovePDF pricing, checked 4 November 2026. Compare: FastOCR vs iLovePDF.
5. Adobe Acrobat online OCR
- Best for
- A Latin-script, Chinese or Japanese PDF when you already have an Adobe account.
- Watch out for
- Arabic, Urdu and Hindi are not stated on the pages we checked, so check your script first.
Adobe's free online tool makes a PDF searchable. You can upload without signing in, but you sign in to download the searchable PDF. The page names English, German, Spanish, French and Portuguese, and Adobe's OCR language list adds Chinese and Japanese. Text recognition on PNG, JPG and TIFF files is described under the Acrobat Pro trial, not the free tool.
Source: Adobe online OCR, checked 4 November 2026. Compare: FastOCR vs Adobe Acrobat.
6. OCR.space
- Best for
- Developers who want a free API to prototype with, and Hindi scans on Engine 3.
- Watch out for
- The watermark and the 1 MB cap make the free API a testing tier.
OCR.space has a free web tool that needs no registration, with a 5 MB limit per document. Its free API plan allows 1 MB files, 3 PDF pages and 500 requests a day per IP address, and searchable PDFs on that plan carry a watermark. Engine 3 adds more than 200 languages; Urdu and Bengali are not named on its language table.
In our test: the default Engine 2 rejected Arabic, Hindi and Persian and got 100% of the Bengali page's characters wrong. Engine 3 did well: 2.9% on Arabic, 2.7% on Hindi and 7.8% on Persian. Lower is better.
Source: OCR.space API, checked 4 November 2026. Compare: FastOCR vs OCR.space.
7. imagetotext.info
- Best for
- One image to text or Markdown with no account.
- Watch out for
- No searchable PDF output is listed.
imagetotext.info turns images into text with no registration and exports text, Word, HTML and Markdown. Uploading several files at once needs an upgrade, and its Premium plan is sold as 'no ads and captcha'. The language sentence on its home page names Arabic, Chinese, Japanese, Korean and Thai, not Urdu, Hindi or Bengali.
In our test: it read those scripts about as well as FastOCR anyway, with 9.2% of the Urdu page's characters wrong against FastOCR's 9.1%. Lower is better, and gaps under 3 points are noise.
Source: imagetotext.info, checked 4 November 2026. Compare: FastOCR vs imagetotext.info.
8. i2OCR
- Best for
- A single page you want deleted quickly.
- Watch out for
- One page per run gets slow past a handful of pages.
i2OCR is free for one image or one PDF page per run; bulk OCR needs a premium plan. It lists 128 languages, including Arabic, Urdu, Persian, Hindi, Bengali and Tamil, and outputs text, Word, HTML and searchable PDF. Its FAQ allows images up to 20 MB and says files are deleted automatically within 30 minutes.
In our test: not run, because the site sits behind a CAPTCHA.
Source: i2OCR FAQ, checked 4 November 2026.
9. NewOCR
- Best for
- Many images with no account.
- Watch out for
- It publishes no file size or page limit, so check a result before you rely on it.
NewOCR needs no registration and says there is no limit on the number of files. It lists 122 languages, including Arabic, Urdu, Persian, Hindi and Bengali, takes images, PDF, TIFF and DjVu, and returns TXT, DOC or PDF. Its page says it is based on the Tesseract OCR engine.
In our test: the site sits behind a CAPTCHA, so we scored Tesseract, the engine NewOCR names, instead. NewOCR's own settings may differ.
Source: NewOCR, checked 4 November 2026.
10. Tesseract (open source)
- Best for
- Developers and offline batch jobs on printed text; test your script first, because it struggled on our Urdu, Persian and Chinese pages.
- Watch out for
- Its FAQ says it is designed for printed text and won't work well on handwriting.
Tesseract is free, open-source OCR under the Apache License. It reads more than 100 languages, including Arabic, Urdu, Persian, Hindi and Bengali, and writes plain text, hOCR, PDF, TSV and ALTO. Its documentation says it has no built-in window, so you run it from the command line or through another app.
In our test: with the right language pack, Tesseract 5.5.4 got 8.5% of the English page's characters wrong and 8.5% of the Tamil page, but 55.3% of the Urdu page and 80.0% of the Persian page. Lower is better.
Source: Tesseract on GitHub, checked 4 November 2026. Compare: FastOCR vs Tesseract.
11. OnlineOCR.net
- Best for
- Documents in Latin scripts, Chinese, Japanese or Korean, when you want Word or Excel back.
- Watch out for
- The hourly guest cap and the ads on the page.
OnlineOCR.net lets guests convert 5 files an hour, up to 15 MB each, with no signup; registered users get larger files. It lists 46 languages and returns Word, Excel, text, PDF or RTF. Its language menu does not list Arabic, Urdu, Persian, Hindi, Bengali or Tamil.
In our test: with no Urdu option, our Urdu page came back as Latin letters, 99.6% of characters wrong (lower is better).
Source: OnlineOCR.net, checked 4 November 2026. Compare: FastOCR vs OnlineOCR.net.
12. Convertio OCR
- Best for
- A first try on one short document.
- Watch out for
- Ten pages is a trial allowance, not an ongoing free tier.
Convertio's OCR page shows 10 available pages and asks you to sign up for more. You choose the language from a list of about 75 that includes Arabic, Chinese and Hebrew but not Urdu, Persian, Hindi or Bengali. Outputs include Word, Excel, searchable PDF and text.
Source: Convertio OCR, checked 4 November 2026.
What your phone or computer already does
Your phone may already read text. Apple's Live Text needs an iPhone XS, XR or later with iOS 15, and Apple says it isn't available in all regions or languages. Its feature list names Chinese, Japanese, Korean and Thai, and does not list Arabic, Urdu, Persian, Hindi, Bengali or Tamil.
For English and other Latin-script text, a built-in tool is often enough. For other scripts, or when you need a searchable PDF, use a web tool or a desktop app. See FastOCR vs Apple Live Text.
Free OCR APIs
Most hosted OCR APIs need an account and a key. The FastOCR REST API returns text or a searchable PDF, with a Python SDK, an MCP server for AI agents, and LangChain and LlamaIndex loaders; its free monthly pages are shared with PDFs on the website. OCR.space's free API allows 1 MB files and 3 PDF pages and watermarks searchable PDFs. Limits for other providers are in the free OCR API guide.
How to choose a free OCR tool
- Check your script on the tool's language list first. A listed language is not a good result, but an unlisted one is a warning.
- Check the file cap. 2 MB (Google Drive) and 1 MB (OCR.space API) rule out many scans.
- Decide what you need back. Plain text, Word, Markdown, or a searchable PDF you can search and copy from.
- Decide where the file may go. If it must not leave your computer, use a desktop app or Tesseract.
- Test one real page. Paste the output into a text editor. For right-to-left text, check that the first word sits at the right and the numbers are intact.
How we tested
- Dates: the other tools ran on 31 October 2026, and FastOCR's output came from its production API on 25 October 2026. Advertised facts were checked on 4 November 2026. We will re-run the test before quoting these numbers after January 2027.
- Pages: eight scanned book pages from Wikimedia Commons, public domain or CC0, one per script. The reference is each page's Wikisource transcription.
- Score: the share of characters wrong after removing spaces, punctuation and Arabic diacritics, so lower is better. The Wikisource text differs from our own proofread key by 1% to 6%, so gaps under about 3 points are noise.
- FastOCR got a smaller 500-pixel-wide image for the Arabic, Urdu and English pages; the other tools got 1,280 pixels.
- NewOCR and i2OCR sit behind a CAPTCHA and were not run. For NewOCR we ran Tesseract 5.5.4, the engine its page names, with the right language pack.
- OCR.space ran on its public demo key. Empty Engine 3 results on Tamil, Chinese and English may be rate limiting, so we do not count them.
- Google Drive, iLovePDF, Adobe and Convertio were not run; they are compared on their own published facts only.
- Scans: Wikimedia Commons. Text: Wikisource.
When another tool is the better choice
- You need more recognition languages than FastOCR's 100+: ABBYY FineReader PDF lists 198 and Readiris 138, both paid.
- Your pages are Hindi, where OCR.space Engine 3 was clearly more accurate than FastOCR. FastOCR tied on Persian, where OCR.space Engine 3 scored lower, inside the noise.
- You want a scanned PDF that is not right-to-left made searchable in the browser with no account at all: PDF24.
- You already use Google Docs or iLovePDF every day and only scan Latin-script pages.
- You want an engine to build on in your own code: Tesseract is free and open source.
FAQ
What is the best free OCR software?
It depends on the file. For photos and scans with no account, FastOCR (our tool) returns text, a searchable PDF, Word and Markdown. To work offline on a computer, use FastOCR's free Mac and Windows apps or open-source Tesseract. For a scanned PDF that is not right-to-left, with no account, use PDF24.
Which free OCR tool is the most accurate?
No tool won every page. In our test of 8 scanned pages, FastOCR had the lowest or tied-lowest error rate on 7 (gaps under 3 points count as ties). Lower is better.
What is the best free tool to OCR a PDF?
For a scanned PDF that is not right-to-left, with no account, PDF24. For a PDF you will search and copy from afterwards, especially Arabic, Urdu or Chinese, FastOCR's searchable PDF with a free account, or its offline desktop apps with no account. For a small file you will edit in Google Docs, Google Drive.
Is there free OCR software for Windows or Mac that works offline?
Yes. FastOCR has free Mac and Windows apps in public beta that make searchable PDFs, text, Word and Markdown without uploading anything. They read text with the recognition built into macOS and Windows. Tesseract is also free and open source, but you run it from the command line.
Which free OCR tools need no sign-up?
FastOCR for images, PDF24, NewOCR, imagetotext.info and OCR.space's web tool all say no registration is needed. OnlineOCR.net allows guests 5 files an hour. Adobe's online tool needs a sign-in to download, and Convertio asks you to sign up after 10 pages.
Is there a free OCR tool with no watermark?
FastOCR adds no watermark to its text, Word or searchable PDF files. OCR.space marks searchable PDFs on its free API as watermarked, and most other tools here do not state either way, so open one output before you rely on a tool.
Which free OCR tools read Arabic, Urdu or Hindi?
FastOCR detects all three automatically. Google Drive, PDF24, iLovePDF, i2OCR, NewOCR and Tesseract list them. OnlineOCR.net does not list them, and OCR.space does not list Urdu. A listed language is no promise: PDF24 got 69.0% of our Urdu page's characters wrong. Lower is better.
Is there a free OCR API?
Yes. FastOCR has a REST API, a Python SDK and an MCP server, with free monthly pages shared with PDFs on the website. OCR.space has a free API plan limited to 1 MB files and 3 PDF pages, and its searchable PDFs on that plan carry a watermark.
Method
Competitor facts come from each tool's own pages, checked on 4 November 2026; a fact a tool does not state is shown as Not stated, never as No. Accuracy is the share of characters wrong against the Wikisource text, lower is better, on one public-domain scanned page per script, run on 31 October 2026. Details and caveats are in how we tested.
Change log
- 10 January 2025: First published.
- 31 October 2026: Rewritten with the 8-language accuracy test.
- 4 November 2026: Competitor facts re-checked on their own pages. Added the free offline Mac and Windows apps, Tesseract and imagetotext.info.
