Data Studio — every data tool in one private page

Clean, profile, transform and chart CSV, TSV and JSON data, compare text, source code, JSON, CSV or two images side by side with inline differences and an image slider, and encode or decode Base64, URL escapes, HTML entities and Unicode. Everything runs in your browser with no account and nothing uploaded, and your work in each tool is kept while you switch between them.

Privacy note: your files and text stay on your device. The page itself still loads fonts and anonymous analytics from third-party services, so standard details like your IP address and page URL may be visible to them — as with any website.