Free Utilities
Free Online Tools
300+ free tools — no signup, no upload, works right in your browser.
Most Popular Tools
YAML to JSON Converter
Convert between YAML and JSON instantly. Bidirectional conversion, auto-detect format, Kubernetes manifest detection. 100% client-side.
Cron Expression Builder
Visual cron expression builder with next-run preview, code snippets, natural language input, and presets. 100% client-side.
Markdown Editor
Write Markdown with live preview, GitHub-Flavored Markdown support, toolbar formatting, export to .md or HTML, and dark mode.
URL Encoder & Decoder
Encode or decode URLs and query parameters instantly. Supports encodeURIComponent and encodeURI modes.
Speed Test
Test your internet connection speed. Measures download speed in Mbps, latency, and jitter with a visual speed gauge.
CSS Formatter & Beautifier
Format and beautify CSS with customizable indentation, or minify for production. Size comparison and dark mode.
Ping Tool
Measure HTTP latency to any website or server. Tests round-trip time with statistics including min, max, average, and packet loss.
CSS Minifier
Minify CSS to reduce file size. Remove comments, whitespace, optimize colors, strip vendor prefixes.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512, and CRC32 hashes from text and files instantly.
UUID Generator
Generate UUID v4, v1, and v7 with bulk generation, validation, and format options.