Format Converter for Designer

20 format converter tools hand-picked for Designer.

Base64 Encoder & Decoder

Encode or decode Base64 — text, files, and Data URLs. Runs entirely in your browser.
Base64 to File Converter

Paste raw Base64 or a data URL, decode it locally, inspect bytes, and download the reconstructed file.
CSS Color Format Converter

Convert any color between HEX, RGB, HSL, OKLCH, CSS variable, and Tailwind — with live preview.
CSS Formatter & Minifier

Format and beautify CSS — sort properties, indent rules, expand or minify.
CSS Minifier

Minify CSS — strip comments, whitespace, shorten colors, merge selectors. 30-60% smaller.
File to Base64 Converter

Upload a small file and convert it to raw Base64 or a data URL locally for embeds, fixtures, and tests.
Hex Color Deduplicator

Find duplicates and keep one clean copy of hex colors from pasted text or uploaded local files.
Hex Color Extractor

Extract, dedupe, and export hex colors from pasted text or uploaded local files.
Hex Color List Converter

Convert hex colors from pasted text or uploaded local files.
Hex Color List Validator

Validate and explain issues in hex colors from pasted text or uploaded local files.
Hex Color Normalizer

Normalize, sort, and prepare hex colors from pasted text or uploaded local files.
HTML Form Extractor

Upload or paste HTML and extract forms, methods, actions, fields, labels, required flags, autocomplete, password fields, and security risks.
HTML Minifier

Minify HTML — strip comments, whitespace, optional attributes, inline CSS/JS. 40-60% smaller.
Image Target Size Compressor

Compress one image to a target KB size locally with quality search, automatic downscaling, preview, and download.
JS Minifier

Minify JavaScript — strip comments, whitespace, optional name shortening. 40-70% smaller.
OKLCH Color Converter

OKLCH ⇄ HEX, RGB and HSL with a full sRGB → OKLab → OKLCH pipeline, live swatch and sRGB gamut warning — browser-only
Paper Size Reference

A4, Letter, A3, B5 and every ISO and US sheet in mm, cm, inches and pixels at 72/150/300 DPI, browser-only
Paper Weight GSM Calculator

GSM ⇄ US basis weight (lb) by paper grade, plus single-sheet weight from sheet size — browser-only
RGB to CMYK Converter

RGB and HEX to CMYK for print, plus CMYK back to RGB, with a live swatch and one-click copy, all in the browser
SVG to PNG Converter

Rasterize SVG to PNG in your browser — custom size, 1×/2×/3× HiDPI scale, true transparent background, never uploaded.