The Best Free OCR Tools in 2026, Compared Honestly
Every limit below comes from the tool's own published pages, checked on the same day. Where a competitor is better, it says so.
By Tu Luu · · 11 min read
Disclosure, before anything else
I built one of the tools in this comparison. That is a conflict of interest, and you should read the rest with it in mind.
Most "best free OCR" articles are written by OCR tools that place themselves first without mentioning they wrote it. This one names the conflict, uses only figures each vendor publishes about itself, and marks the rows where the competitors win — of the nine rows below, this site wins three, loses three and draws three.
The short answer
There is no best free OCR tool, because the free tiers differ on axes that matter to different people. Pick on the one constraint that actually binds you:
- The document is sensitive — a contract, a payslip, an ID, a medical letter. Use something that processes in your browser so the file is never transmitted. That includes this site, and it includes several open-source projects listed further down.
- You have PDFs — use OnlineOCR.net or i2OCR. This site does not accept PDFs at all.
- You need a Word or Excel file out, not raw text — OnlineOCR exports DOCX, XLSX and RTF. This site gives you plain text and nothing else.
- You need an unusual script — i2OCR publishes the widest language list of the three, at 128 including Indic scripts.
- You have a large batch and no patience — the hourly caps below decide it.
Side by side
| Feature | Txt2Img.click | OnlineOCR.net | i2OCR |
|---|---|---|---|
| Where processing happens | In your browser (Tesseract.js / WebAssembly) | Uploaded to their server | Uploaded to their server |
| Recognition languages | 100+ | 46 | 128 |
| Files per hour | No limit | 5 (free guest) | 1 image or PDF page at a time |
| File size limit | Bounded by your device memory, not by us | 15 MB | not stated |
| Account required | No | No for guest mode | No |
| PDF input | No — screenshot the page first | Yes | Yes, image-based PDFs |
| Output formats | Plain text | TXT, DOCX, XLSX, RTF, PDF | Plain text, Word, HTML, searchable PDF |
| Works offline after load | Yes | No | No |
| Price | Free, ad-supported | Free tier, paid plans for more | Free tier, paid bulk OCR |
- Where processing happens: Only matters if the document is sensitive. For a public screenshot it is irrelevant.
- Recognition languages: i2OCR publishes the widest list, including Indic scripts.
- PDF input: A real gap here. If you have multi-page PDFs, the other two are the better tool.
- Output formats: If you need a formatted document rather than raw text, this site is the wrong choice.
Figures checked against each tool's own published pages on . Free tiers change without notice — if a number here disagrees with the vendor's page, the vendor is right. Competitor links are nofollow.
"Runs in your browser" is not a differentiator, it is a category
Client-side OCR is not rare or clever. Tesseract.js is an open-source WebAssembly build of Tesseract, and anyone can put a page in front of it. Plenty of people have — see Rapid_OCR for a self-hostable one, or run Tesseract locally with no browser at all.
So the honest claim is not "we are the private one". It is that a hosted, maintained tool that happens to be client-side is convenient, and that you should never take any tool's privacy claim on trust — including this one.
How to verify a privacy claim in about a minute
This works on any OCR site, and it is worth doing before you feed a tool anything you would not post publicly.
- Open developer tools and switch to the Network tab.
- Tick Preserve log, then clear the list.
- Run an extraction on a throwaway image.
- Sort by size. A tool that processes locally sends nothing the size of your image. A tool that uploads shows a request whose payload matches the file.
- Stronger test: load the page, disconnect from the network, then run an extraction. Local processing keeps working. Anything that uploads cannot.
One caveat so this is not overstated: the OCR being local does not mean the page is free of third-party requests. This site loads analytics and ads, which see that you visited — they just never see your file. The longer write-up covers where that line sits.
Where this site is the wrong choice
Stated plainly, because a comparison that never concedes anything is not a comparison:
PDFs
Not supported. Screenshot each page, or use a tool that takes PDFs directly.
Formatted output
Plain text only. No DOCX, no XLSX, no searchable PDF, and no attempt to preserve tables or layout.
Handwriting
Tesseract is trained on printed text. Cursive produces confident nonsense rather than an approximation — and that is true of the other two here as well.
Very large images on a weak device
Processing locally means your phone does the work. A server-side tool will beat it on a 20-megapixel scan.
Getting better results from any of them
Tool choice matters less than input quality — and it matters less than most guides claim. On clean rendered text Tesseract is flawless from 9–14 pixels of capital height and only collapses below about 6, which I measured across three typefaces rather than repeating. Photographs need more headroom, because noise and blur each eat into it; engines tolerate a couple of degrees of skew and degrade past about five. The Tesseract maintainers' image quality guide recommends at least 300 DPI for scans. There are twelve more specific fixes in this guide, and they apply whichever tool you pick.