Utilities
A collection of small, focused tools for developers and writers — all running in your browser with no signup, no install, and no data leaving your device.
Smart Text Cleaner
Remove extra spaces, fix line breaks, and clean formatting from any text instantly.
Word Case Swap
Convert text between UPPER, lower, Title Case and more with one click.
Character Counter
Count characters, words, sentences, paragraphs, and estimate reading time instantly.
JSON Formatter
Format, validate, and minify JSON with syntax highlighting and error detection.
Base64 Encoder
Encode and decode Base64 strings instantly. Supports Unicode text.
URL Encoder & Decoder
Encode and decode URLs instantly using encodeURIComponent. Supports both encode and decode modes with live output.
UUID Generator
Generate UUID v4 identifiers using the Web Crypto API. Copy instantly, keep a history of recent UUIDs.
Color Converter
Convert colors between HEX, RGB, and HSL formats. Pick with color picker or enter values manually.
Timestamp Converter
Convert Unix timestamps to human-readable dates and back. Supports UTC, local time, ISO 8601, and relative time.
Text Diff Viewer
Compare two texts and highlight added and removed lines. LCS-based diff running entirely in your browser.
Noise Meter
Measure real-time sound levels in dB using your device microphone. Instantly see noise categories from quiet to very loud.
Built for Speed and Privacy
Every utility here runs entirely in your browser. There is no backend to upload to, no account to create, and no log of what you paste. Open a tool, get your result, close the tab — that is the whole flow.
These tools cover the small jobs that show up in everyday work: cleaning up messy text, formatting JSON, encoding a URL, generating an identifier, comparing two versions of a document. Each one is free, instant, and works the same on desktop and mobile.
Frequently Asked Questions
Are these utilities free?
Yes. Every utility on this page is completely free with no signup, no ads, and no usage limits. Open the tool and start working immediately.
Do the tools work offline?
After the page loads once, most utilities run entirely in your browser and continue to work without an internet connection. Only the initial page fetch requires a network.
Why use a browser-based formatter instead of a desktop app?
No installation, no updates, no platform lock-in. The tools open instantly in any modern browser on desktop or mobile and stay in sync across devices through the URL.
Can I trust JSON or Base64 tools with sensitive data?
Yes. All processing happens locally in your browser using JavaScript. Your input never leaves your device — nothing is uploaded, logged, or stored on our servers.
Which utility should I start with?
If you work with text, try Smart Text Cleaner or Character Counter. Developers usually reach for JSON Formatter, Base64 Encoder, or UUID Generator first. Pick whichever solves your current task.