Every web tool you need,
in one fast place.
A lightweight set of utilities for developers and designers. Everything runs in your browser — no data is ever sent to a server.
IDE theme
Developer7Format JSON with indentation and syntax highlighting. Detects errors and validates.
Encode or decode text and files to Base64. Fully client-side.
Percent-encode URL special characters or restore the original string.
Convert Unix timestamps to and from human dates. Live current time.
Split a JWT into header, payload and signature. Checks expiry.
Live-highlight regex matches against your test string.
Build cron schedules visually. Previews the next run times.
Canvas theme
Design3Edit linear, radial and conic gradients visually and copy the CSS instantly.
Convert between HEX, RGB, HSL and HSV with a picker and saved palettes.
Compute ratios and aspect-locked resizes from width and height. Includes presets.
Clean theme
Text4Live counts of characters, words, sentences and lines. With social limits.
Convert Markdown to HTML in real time with a side-by-side preview.
Generate dummy text by paragraphs, words or sentences. Korean option included.
Convert image files to a Base64 Data URL with copy and preview.