I built Toolars because I got tired of a specific kind of website: the "free online PDF tool" that makes you upload a sensitive file to a server you've never heard of, then covers the result page in ads. So I made the opposite: 100 tools where your input never leaves your browser. Not as a policy promise — as architecture. Tools run on WebAssembly and Web Workers, and to prove it we ran canary-string network audits: inject a unique string, run the tool, check that it appears in zero network requests. Nine tools audited so far, zero leaks, results published at /benchmarks along with each tool's measured input limits. Also: no sign-up, no ads, works offline once loaded, 13 languages, and a Chrome extension that puts the toolkit in a side panel next to whatever you're working on. Genuinely curious where this model breaks for you — if a tool you need is missing, there's a request-tool page and I read every submission.

Toolars

Free online tools that never upload your files

Free online tools that never upload your files