Tiny, fast tools to help you build stuff.
No sign-ups, no fuss.
Strip API keys, tokens, and connection strings out of text before you paste it anywhere.
Count tokens and estimate cost across GPT, Claude, and Gemini.
Let a coding agent call 20 of these tools directly. Free npm package.
Generate strong, random passwords with customizable length and character rules.
Convert times between different timezones around the world.
Design CSS Grid layouts visually and export the code.
Pick a random item from a list of options fairly.
Convert images to Base64 data URIs for embedding in HTML, CSS, or JSON. Supports all common image formats.
Convert internationalized domain names (IDN) to and from Punycode ASCII representation.
Compare two JSON objects and highlight added, removed, and changed values.
Reverse text character by character, word by word, or line by line.
Remove duplicate lines from text while preserving the original order.
Sort lines of text alphabetically, numerically, or in reverse order.
Trim leading, trailing, and extra whitespace from text.
Live Markdown editor with GitHub-flavored preview and HTML export.
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