Free Online Developer Tools. No Login. No Limits.

100% private — every tool runs entirely in your browser. Nothing you paste is ever uploaded anywhere.

Popular tools

Format, beautify and validate JSON instantly with clear error locations.

Encode text to Base64 or decode Base64 back to plain text.

Decode a JSON Web Token and inspect its header, payload and signature.

Convert an image to a Base64 data URI, with optional compression to shrink it first.

Test regular expressions against sample text with live match highlighting.

Resize, trim, speed up, filter, caption, denoise and add music to a video — upload once, apply everything, export once.

Everything runs in your browser. Nothing you paste or upload is ever sent to a server.

No spinners, no waiting on a backend — output updates the moment you type.

No login, no watermark, no hidden limits. Utilrix stays free for every tool we ship.

Format, validate and shrink structured data.

Encode, decode, and hash — all in your browser.

Create IDs, passwords, and other random values.

Beautify and test HTML, CSS, SQL and regular expressions.

Convert between the formats developers deal with daily.

Everyday text utilities.

Resize, trim and compress video for YouTube and Instagram — 100% in your browser.

AI that runs entirely on your device — no uploads, no accounts, works offline after the first load.

Bookmark Utilrix once — every new tool we ship lands in the same place.