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.
Head to head
The table says what each tool allows. This says which one to open, one competitor at a time. The case for the other tool comes first in both, because a comparison written by one of the entrants owes you that ordering.
Txt2Img.click vs OnlineOCR.net
Choose OnlineOCR.net when…
- You have PDFs. This is the clearest split: OnlineOCR takes them directly, Txt2Img.click does not take them at all.
- You need a Word, Excel or RTF file out rather than raw text. OnlineOCR exports DOCX, XLSX and RTF; Txt2Img.click gives you plain text and nothing else.
- You are OCRing a very large scan on a slow phone. Their server does the work; on Txt2Img.click your own device does, and a weak device will be slower.
- You want the whole job done in one place — upload, convert, download a formatted document — without stitching tools together.
Choose Txt2Img.click when…
- The document is sensitive. Contracts, payslips, IDs, medical letters. Nothing is transmitted, and you can confirm that in the Network tab in under a minute.
- You have more than five files to run in an hour. OnlineOCR caps free guest conversions at five per hour; there is no cap here because there is no server to protect.
- Your file is over 15 MB, which is OnlineOCR’s free-tier ceiling.
- You are working offline, or on a connection too poor to upload. Once the page has loaded, extraction keeps working with the network disconnected.
These tools are not really competing for the same job. OnlineOCR is a document converter — PDFs in, formatted files out — and it is better at that than Txt2Img.click will ever be, because Txt2Img.click does not attempt it. Txt2Img.click is for pulling text out of a screenshot or photo without the file leaving your machine. Pick on whether you need document conversion or local processing; if you need both, you need two tools.
Txt2Img.click vs i2OCR
Choose i2OCR when…
- Your text is in a script Tesseract handles poorly or not at all. i2OCR publishes 128 languages including Indic scripts — the widest list of the tools compared here.
- You have PDFs. i2OCR accepts image-based PDFs; Txt2Img.click does not accept PDFs.
- You want a searchable PDF, Word or HTML file out. Txt2Img.click produces plain text only.
- You are OCRing something heavy and would rather their server spent the CPU than your laptop.
Choose Txt2Img.click when…
- The document is sensitive. i2OCR uploads your file and states it is deleted after 30 minutes; Txt2Img.click never transmits it, which is a different guarantee — you are not trusting a retention policy, there is nothing to retain.
- You have a batch. i2OCR’s free tier processes one image or PDF page at a time; here you can run as many as your device will sit through.
- You are offline, or on a connection that makes uploading painful.
- You want to verify the privacy claim yourself rather than read one. Disconnect the network after the page loads and extraction still works — no upload-based tool can do that.
i2OCR wins on breadth: more languages, PDF input, more output formats. If your constraint is an unusual script or a PDF, use it — Txt2Img.click cannot help you there. The reason to pick Txt2Img.click is narrower and harder to match: the file stays on your machine, and you can prove it in about a minute. Everything else about it is ordinary.