Developer tools that run in your browser
Fast, focused utilities for JSON, encoding, hashing, dates and text. No accounts, no uploads, nothing to install.
Popular tools
Most used
All tools → What Is My IP Web See the public IP address your traffic arrives from, and what it reveals about you. JSON Formatter JSON Pretty-print, validate and minify JSON with syntax highlighting and precise error locations. Base64 Encoder Encoding Encode text or files to Base64, with URL-safe output and data URI generation. Unix Timestamp Converter Time The live Unix epoch plus conversion both ways, in seconds or milliseconds, UTC and local. JWT Decoder Encoding Decode JWT header and payload, read claim timestamps, and optionally verify the signature. UUID Generator Generators Generate v4 and v7 UUIDs in bulk, with formatting options and one-click copy. Regex Tester Web Test regular expressions with highlighted matches, capture groups and a safety timeout. JSON Validator JSON Check whether JSON is valid and get the exact line, column and cause of any syntax error.
Browse by category
JSON & Data Format, validate and convert structured data Encoding & Decoding Base64, URL, HTML entities, hex and JWT Generators IDs, passwords, random data and placeholder text Hashing & Security SHA-256, SHA-1, MD5 and HMAC signatures Date & Time Timestamps, timezones, durations and cron Text Tools Count, convert, clean, sort and compare text Web & Dev IP addresses, subnets, regex, HTTP status codes and colors
How FindTool works
Nothing is uploaded
Every tool here runs as JavaScript in your own tab. The API response you paste, the token you decode and the password you generate never reach a FindTool server, because there is no server to reach.
No account, no limits
There is nothing to sign up for and no usage quota. Bookmark a tool, use it fifty times a day, and you will never see a login wall or a "upgrade to continue" prompt.
Built to stay fast
Pages are static HTML served from a CDN, with only the small amount of JavaScript a given tool actually needs. Most pages are interactive before a spinner would have had time to appear.