Frequently asked questions
Are my files uploaded anywhere?
No. Every SnapToolz tool runs entirely in your browser using JavaScript and WebAssembly. Files are read locally, processed in memory, and the result is offered as a download. There is no backend.
How does OCR work without a server?
We use Tesseract — the leading open-source OCR engine — compiled to WebAssembly. The engine and language data run entirely in your browser. The first run downloads ~5 MB of training data; afterwards it's offline.
Will the diff tool show character-level differences?
Yes — Text Diff has line, word, and character modes. Pick the level of granularity that matches what you're comparing.
How does this compare to running text tools in Notepad++, VS Code, or online tools?
Notepad++ and VS Code are powerful but locked to the desktop. Online tools that aren't browser-only typically POST your text to a server for processing — fine for jokes, problematic for anything proprietary (legal drafts, internal docs, AI prompts). SnapToolz' text tools run in your browser, so they're accessible from any device, work offline once cached, and don't ship your text anywhere.
Is everything free?
Yes — every tool in this category and on the entire site is free with no sign-up, no daily limit, and no watermark.