Development
Parse a 5-part / 6-part / Quartz cron expression into a plain-language schedule description, show the field-by-field breakdown, and list the next N execution times in any IANA timezone — with an AI-generated natural-language explanation in your language
cron-expression-explainerData Processing
Upload a CSV file or paste CSV text, remove duplicate rows using exact or fuzzy matching, and download a cleaned CSV.
csv-deduplicate-rowsDesign
Visualize a CSS cubic-bezier easing curve, preview it live on position/opacity/scale, pick presets, and export copy-ready CSS
css-easing-visualizerDevelopment
Browse the complete ASCII character table (0–127) with decimal, hex, octal, binary, HTML entity, and control character names; filter by code or name
ascii-tableFormat Conversion
Encode and decode Base64URL (URL-safe Base64 variant used by JWT/JWS/JWE), with conversions between standard and URL-safe Base64
base64url-encoderDesign
Generate a clamp() expression from min and max viewport and font-size bounds, with copy-ready CSS and preview data
css-fluid-typography-clamp-calcDevelopment
Convert a cURL command into a Go net/http code snippet with http.NewRequest, headers, and body
curl-to-goDevelopment
Convert a cURL command into a JavaScript axios code snippet with config object, headers, and data
curl-to-js-axiosDevelopment
Convert a cURL command into a JavaScript fetch() code snippet with headers, body, and method
curl-to-js-fetchMedia
Measure integrated LUFS, true peak, and LRA, then normalize audio to Spotify, Apple Music, broadcast, or custom targets
audio-loudness-lufs-normalizerSecurity
Generate Argon2id password hashes with tunable memory, iterations, parallelism, salt length, and PHC output
argon2-password-hash-generatorHealth
Calculate a symmetric per-side plate setup for a target barbell weight, with kg/lb support and custom inventory
barbell-plate-load-calculator