4 tools live + 5 in queue

A quiet toolkit for the things you do every day.

Color conversion, JSON inspection, EXIF editing, App Store screenshots. No accounts. No tracking. Everything runs in your browser.

Open a tool Browse all⌘ K to search

4

Tools live

0

Bytes uploaded

100%

Client-side

MIT

Open source

/ tools

Everything in the toolkit

Pick a tool. Drop in your data. It stays on your machine.

Sort:

Color ConverterColor

RGB, HEX, HSL, OKLCH, CMYK + picker, palette, contrast.

RGBHEXHSLOKLCHCMYKWCAG

Palette GeneratorColor

Tints, shades, harmonies from any base color.

TintsShadesHarmoniesCSSTailwind

JSON FormatterData

Format, validate, tree, YAML, diff, JSONPath.

FormatTreeDiffJSONPathYAML

Regex TesterData

Live match preview with capture groups.

MatchGroupsFlagsNamedLive

JWT DecoderData

Decode and verify JSON Web Tokens.

DecodeHeaderPayloadClaimsBase64

EXIF EditorImage

View, edit, strip metadata. Batch + GPS map.

ReadEditStripBatchGPS

Image CompressorImage

Quality-aware PNG / JPG / WebP optimization.

JPEGWebPPNGQualityLocal

App Store ScreenshotsMarketing

Preset sizes, device frames, headlines, export PNG.

6.7"6.5"iPadFramesExport PNG

OG Image BuilderMarketing

Open Graph and Twitter card composer.

1200×630TwitterFacebookLinkedInPNG

/ principles

Three things we won't compromise on

01 Local first.

Every tool runs entirely in your browser. Files, EXIF data, and JSON never touch a server.

02 Quiet by default.

No popups, no upsell, no email gates. Open the tool, do the thing, close the tab.

03 Built for keyboards.

Real shortcuts. Real focus states. Designed by developers who hate clicking through dialogs.