Format, compress, compare — right in your browser.
26 tools for everyday development. Files and text stay on your machine. The visuals stay quiet, so you can hit a shortcut and get the result.
What is inside
Dev & encoding, image studio and video studio, all sharing the same shortcuts and palette.
Dev & encoding
JSON formatter
Structured preview with error hints and path picker.
Data converter
Convert JSON, YAML, XML and CSV locally.
CSV / Excel to JSON
Import CSV, XLSX or JSON and export locally.
SQL formatter
Format SQL by dialect or minify it into one line.
Regex tester
Live matching, captures and replacement preview.
Text Diff tool
Two-pane Monaco diff editor with synced scroll.
Markdown live preview
Live preview with code highlighting and TOC.
Cron expression
Build Cron fields and preview upcoming run times.
JWT decoder
Inspect claims, expiry and verify HS256 signatures.
Base64 Encode/Decode
Text and file conversion, all in-browser.
URL Encode/Decode
Encode / decode paths and query strings.
Timestamp Converter
Local ↔ target timezone in ms or s.
Hash Generator
MD5, SHA-1/256/512 in one go.
UUID / NanoID Generator
Batch v1 / v4 with multi-line copy.
Image studio
Image Compress
In-browser compression, files never leave your machine.
Image Format Convert
PNG / JPG / WebP conversion.
Batch image editor
Resize, crop, watermark and ZIP images locally.
Background removal
Remove portrait or general backgrounds locally and export transparent PNGs.
Image upscale
4× Real-ESRGAN upscaling locally, with before/after export.
Depth map
Estimate depth locally, then split near, mid and far transparent layers.
PNG to SVG tool
Package PNG or JPG into downloadable SVG files, with ZIP export.
SVG preview
Code and preview split with pan-zoom.
Color Converter
HEX / RGB / HSL and WCAG contrast.
Favicon / App Icon
One upload, all sizes exported.
QR Code Generator
Text or URL to QR, tunable style.
Three things we care about
A single token set drives palette, type, spacing and shadow, so no page feels out of place.
Shifts under 8px, durations between 160–240ms, and reduced-motion is honored.
Primary actions are reachable via Tab, focus rings are visible, and semantic tags cover screen readers.
Under the hood
Get in touch
Have ideas or issues? Drop me a line: hello@toolsclub.local