Free Utilities
Free Online Tools
300+ free tools — no signup, no upload, works right in your browser.
Most Popular Tools
Cron Expression Builder
Visual cron expression builder with next-run preview, code snippets, natural language input, and presets. 100% client-side.
YAML to JSON Converter
Convert between YAML and JSON instantly. Bidirectional conversion, auto-detect format, Kubernetes manifest detection. 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.
Ping Tool
Measure HTTP latency to any website or server. Tests round-trip time with statistics including min, max, average, and packet loss.
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.
Code Diff / Compare
Compare two code snippets side by side. Line-level and character-level diff, unified/split view. 100% client-side.
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.