Tools for builders and operators
Small, fast, no-nonsense utilities we reach for ourselves. Every one has its own link - bookmark it, share it, wire it into a runbook.
Data & formats
8JSON Formatter
Format, minify and validate JSON - with a live node count.
Open →JSON ↔ YAML
Convert between JSON and YAML, both directions.
Open →JSON ↔ CSV
Turn a JSON array into a table, or CSV back into JSON.
Open →XML Formatter
Pretty-print, minify and convert XML to JSON.
Open →SQL Formatter
Make a wall of SQL readable in one paste.
Open →Base64
Encode and decode Base64, live as you type (UTF-8 safe).
Open →JWT Decoder
Decode a token's header and payload, with a live expiry countdown.
Open →JWT Signer
Build and sign a test JWT (HS256/384/512).
Open →Text
9Case Converter
camelCase, snake_case, kebab, PascalCase and more.
Open →Slugify
Turn any text into a clean, URL-safe slug.
Open →Line Toolkit
Sort, dedupe, trim, reverse and shuffle lines.
Open →URL Encode / Decode
Percent-encode or decode text and whole URLs.
Open →HTML Entities
Escape or unescape HTML special characters.
Open →String Escape
Escape or unescape strings for JSON, JS and SQL.
Open →Markdown Preview
See Markdown rendered and grab the HTML.
Open →Regex Tester
Test a pattern with live match highlighting and a count.
Open →Text Diff
Compare two texts line by line, with a similarity score.
Open →Crypto & security
9Password Forge
Pronounceable, rhythmic passwords that read like words but aren't - hammered out on a split-flap board.
Open →Password X-ray
Paste any password - see its entropy, crack time and verdict.
Open →Hash and Checksum
SHA-256, MD5 and CRC for a snippet of text or a dropped file.
Open →HMAC Generator
Keyed hash (SHA-1/256/384/512) for signatures.
Open →Bcrypt
Hash a password and test it against a hash.
Open →TOTP / 2FA Code
Turn a 2FA secret into a live one-time code.
Open →Key Forge
Forge MasterKeys and other random key material in the browser.
Open →SSH Key Pair
Generate an Ed25519 or RSA key pair in the browser.
Open →Certificate Decoder
Read the subject, SAN and expiry from a PEM certificate.
Open →Network & web
8Subnet Calculator
CIDR → network, broadcast, host range and counts.
Open →DNS Records
Build and read SPF, DKIM, DMARC and more.
Open →cURL → Code
Turn a curl command into fetch, Python or Go.
Open →HTTP Status Codes
A searchable reference for every status code.
Open →MIME Types
Look up the content-type for any file extension.
Open →User-Agent Parser
Break a UA string into browser, OS and device.
Open →IBAN Validator
Check an IBAN and read its country and parts.
Open →MAC Address
Generate random MAC addresses and look up the vendor.
Open →Converters & calculators
6Timestamp
Convert epoch ↔ ISO across formats, beside a live clock.
Open →Number Base
Convert between binary, octal, decimal and hex.
Open →Data Size
Convert bytes, KB/MB/GB and KiB/MiB/GiB.
Open →Colour & Contrast
HEX/RGB/HSL with a live WCAG contrast check.
Open →chmod Calculator
Click the rwx grid, read the octal - and back again.
Open →EXIF Viewer / Cleaner
Read photo metadata, or strip it for privacy.
Open →Generators & IDs
6ID Forge
UUIDs, ULIDs and short nano-IDs on tap, by the handful.
Open →Test Data
Generate believable people as JSON, by the batch.
Open →Lorem Ipsum
Generate placeholder paragraphs, sentences or words.
Open →QR Code
Make a crisp, downloadable QR from any text or link.
Open →Cron Decoder
Turn a cron expression into plain language and a schedule preview.
Open →Cron Builder
Pick a schedule and get the cron expression.
Open →