Free, always · No telemetry

Native apps and browser tools — without the upsell.

Two macOS apps, six Chrome extensions, thirty-plus in-browser developer tools. No accounts. No tracking. Just utilities that load fast and do one thing well.

Mac Apps Browse Tools

HTTP, GraphQL, WebSocket, SSE in one app. Sub-200ms launch, ~30 MB idle. A Postman alternative that respects your machine.

macOS 13+Free4 MB

Dual and quad pane. Command palette (⌘K), global launcher (⌘⇧Space). SFTP, S3, WebDAV, git integration baked in.

macOS 14+Free11 MB

Developer tools

14 tools
JSON FormatterFormat, validate, minify in one paste JSON DiffSemantic compare, ignores key order JSON to TypeScriptGenerate interfaces from JSON JSON to Go StructIdiomatic Go structs with json tags JSON ↔ YAMLRound-trip with comment preservation YAML ValidatorCatch tab indent, duplicate keys, parse errors Regex TesterLive matching with capture group highlights JWT DecoderDecode tokens, inspect claims, verify signatures UUID Generatorv4, v7, and ULID — bulk export ready Cron GeneratorBuild, validate cron schedules Cron ExplainerPlain-English + next 5 runs Unix TimestampEpoch and ISO 8601, both directions Env to JSONConvert .env to JSON with type coercion HTTP Status CodesSearchable reference, including Cloudflare 5xx

Encoding & conversion

7 tools
Base64 EncoderText and binary, URL-safe variants HTML Entity EncoderNamed, numeric, hex modes Number Base ConverterBin, oct, dec, hex, base 2-36, BigInt Text Case Converter13 case formats — camel, snake, kebab Slugify TextURL-safe slug with diacritic stripping CSV to Markdown TableGitHub-flavored tables from CSV/TSV Markdown to HTMLCommonMark subset with live preview

Network & sysadmin

3 tools
Subnet CalculatorPlan IPv4 subnets and CIDR with a visual tree Password GeneratorCryptographically random, customizable rules Chmod CalculatorOctal and symbolic Linux file permissions

Design & CSS

5 tools
Color PaletteGenerate harmonious color schemes Color Contrast CheckerWCAG AA / AAA pass-fail Aspect Ratio Calculator16:9, 4:3, 21:9, 9:16, custom Cubic Bezier EditorCSS easing curves with live preview Lorem IpsumClassic, hipster, corporate, dev

Other utilities

5 tools
Word CounterWords, characters, sentences, reading time Percentage CalculatorOf, change, increase, decrease Unit ConverterLength, weight, temperature, more BPM to MillisecondsTempo-sync delay times for music production SEO Meta GeneratorTitle, description, OpenGraph, Twitter cards

Chrome extensions

6 extensions
Run JavaScriptCustom JS on any site · 25K+ users User-Agent SwitcherSwitch browser identity per tab GoFasterKeyboard-only tab navigation VideoGrabDownload web videos in one click YouTuneYouTube as audio-only player Keep That Mouse MovingAnti-idle for video calls and slack

Everything here is free

No signup. No telemetry. Tools run in your browser; apps run on your machine.

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