Password generator
Create strong random passwords in the browser, with length, character sets and a strength meter.
Open toolTools
Free tools for everyday work
Utilities that run in your browser — no sign-up, and no data sent to the server.
Tool catalog
Password generator, JSON, JWT, Base64, CNPJ, CPF, QR Code and text compare — all in the browser.
JSON validator
Paste JSON, validate syntax, format, minify and inspect the tree — with no data sent to a server.
Open toolJWT decoder
Paste a JSON Web Token and inspect header, payload, claims and expiration — with no data sent to a server.
Open toolBase64 encoder
Encode text or images to Base64, or decode Base64 back to text and image — all in the browser.
Open toolCNPJ generator
Generate valid CNPJ numbers for tests, with or without punctuation, in numeric and alphanumeric formats.
Open toolCPF generator
Generate valid CPF numbers for tests, with or without punctuation and an optional origin state.
Open toolQR Code generator
Create a QR Code from text or a URL in the browser, pick a size and download PNG or SVG.
Open toolText compare
Compare two texts side by side, see the diff and merge changes — all in the browser, with no data sent.
Open tool