Utilities
Free utilities that run in your browser. Most processing stays on your device.
ULID Generator
Generate ULIDs (Universally Unique Lexicographically Sortable Identifiers) easily.
IP Geolocation Tool(Under Construction)
Get the geolocation of an IP address.
JWT Decoder
Decode JWT header and payload in your browser.
JWT Generator
Create HS256 or unsigned JWTs for testing.
OTP / TOTP Generator
Generate development TOTP codes locally.
Hash Generator
SHA-256, SHA-1, and MD5 hashes.
HMAC Generator
Sign messages with HMAC-SHA in the browser.
Bcrypt Hash / Verify
Hash and verify passwords with bcrypt locally.
PEM / Certificate Inspector
Inspect PEM blocks for certs and keys.
API Key Generator
Generate secure API keys and tokens.
Password Generator
Create strong passwords with custom options.
UUID / ULID Generator
Generate UUIDs and ULIDs in bulk.
QR Code Generator
Generate QR codes from text or URLs.
Slug Generator
Turn titles into URL-friendly slugs.
Lorem Ipsum Generator
Generate placeholder text instantly.
.gitignore Generator
Build a .gitignore for common stacks.
Image to Base64
Convert images to Base64 data URIs.
Base64 Encode / Decode
Encode and decode Base64 text.
URL Encode / Decode
Percent-encode and decode URLs.
HTML Encode / Decode
Escape and unescape HTML entities.
Case Converter
camelCase, snake_case, kebab-case, and more.
Color Converter
Convert HEX, RGB, and HSL locally.
YAML ↔ JSON
Convert between YAML and JSON.
CSV ↔ JSON
Convert CSV tables to JSON and back.
JSON Formatter
Format, minify, and validate JSON.
Markdown Preview
Preview Markdown as HTML locally.
Text Diff
Compare two texts line by line.
Unix Timestamp
Convert Unix timestamps to dates and back.
Regex Tester
Test regular expressions against sample text.
Cron Explainer
Explain 5-field cron expressions.
DNS Lookup
Query A, MX, TXT and more via DNS-over-HTTPS.
IP Subnet Calculator
CIDR network, mask, and host range.
HTTP Status Codes
Look up HTTP status meanings quickly.
User-Agent Parser
Parse browser, OS, and device from a UA string.
Dockerfile Linter
Catch common Dockerfile mistakes locally.
OpenAPI / Swagger Viewer
Paste an OpenAPI spec and list endpoints.
HTTP Request Builder
Send HTTP requests from the browser (CORS applies).