All tools

Search local-first browser tools by category.

Search tools

9 browser tools

Text tools

Word and Character Counter
Count characters with or without spaces, words, lines, paragraphs, and UTF-8 bytes while you edit.

Developer tools

Hash and Checksum Generator
Calculate a SHA-256 file hash, compare an expected checksum, and copy the digest with Web Crypto.
QR Code Generator
Create a Wi-Fi QR code from an SSID, security mode, password, and hidden-network setting, then export PNG or SVG.
URL Parser and Query Inspector
Parse URL query parameters into editable rows, preserve repeated and empty values, rebuild the URL, and copy query or JSON.
JWT Decoder and Claims Inspector
Decode JWT header and payload, inspect claims and expiry, and view diagnostics without verifying signatures.
JavaScript Regex Tester and Replace Preview
Test JavaScript regex flags, capture groups, match ranges, and replacement output against sample text.

Image tools