How accurate is the column detection?
It is a genuine guess, not an understanding of the table. Words are grouped into rows by their vertical position and split into columns wherever there is a wide horizontal gap. That works well on a clean grid with clear spacing and poorly on merged cells, wrapped text or tables with ruled lines and tight columns. Always check the output against the image.
Is my image uploaded?
No. Tesseract is compiled to WebAssembly and runs in a worker inside this browser tab, on your own processor. Watch the Network tab while it works — your file never appears in a request. That is the reason to use this rather than an online OCR service for anything containing personal or financial information.
Why is the first run slow?
It downloads the OCR engine and the English training data once, about 15 MB together. Your browser caches both, so every later run starts straight away.
How do I get better accuracy?
Improve the image before you improve the settings. Photograph the page square-on rather than at an angle, fill the frame, get even light with no shadow across the text, and avoid flash glare. A 300 DPI scan beats any phone photo. Small screenshots are upscaled automatically here, which helps a little.
Can it read handwriting?
Barely, and you should not rely on it. Tesseract is trained on printed text. Neat block capitals sometimes come through; ordinary cursive does not. If you need handwriting recognition, this is the wrong tool and honesty is more useful than a bad result.
Which languages work?
English only on this site, because each additional language pack is another 10–15 MB visitors would have to download. English OCR handles most Latin-script text passably even when the language is not English, but accented characters will suffer.
Is the Image Table to CSV free?
It is free, with no account, no trial and no daily cap. Every ocr tool on inputtesthub.com works the same way: open the page and use it.
Is what I paste into the Image Table to CSV stored?
No. The Image Table to CSV runs entirely in your browser using JavaScript. Because the work happens locally, the utility also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
Who is the Image Table to CSV for?
The most common reasons people reach for it: getting a table out of a screenshot into a spreadsheet. Recovering data from a report you only have as an image. Avoiding retyping a price list. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
What are the limits of the Image Table to CSV?
Simple grids only. Merged cells, multi-line cells and tightly packed columns will come out wrong, and there is no way for the tool to know that it has — verify before using the data. Knowing where a tool stops being trustworthy matters more than the cases where it works.
Is there a file size limit?
There is no limit set by us, because your file is never uploaded — the only ceiling is the memory your own browser will give the tab. Very large files simply take longer to process, and a phone will give up sooner than a desktop.