Tools that do one job well, right in your browser.

Encode and decode Base64, including URL-safe variants and UTF-8 text. Turn a file into a data URI. Everything runs in your browser.

Convert text between sentence case, title case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE and URL slugs.

Pull the dominant colours out of any image, with hex codes and contrast ratios. Copy as CSS variables or download the palette as PNG.

Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or a file, and verify a download against a published checksum.

Convert PNG, JPEG, WebP, GIF and BMP into WebP, JPEG or PNG. Batch conversion in your browser, no upload, no account.

Resize one or many images in your browser. Set the longest side, width, height or exact pixels, then download. Nothing is uploaded.

Create a clean invoice in your browser and save it as PDF through the print dialog. Line items, VAT, small business rule, no account, no upload.

Format, validate and minify JSON in your browser. Errors are reported with a line and column, and nothing is sent to a server.

Decode a JSON Web Token and read its header, payload, claims and expiry. The token never leaves your browser, and no signing secret is ever requested.

Combine several PDF files into one, in the order you choose. Runs entirely in your browser, so your documents are never uploaded.

Calculate percentages six ways: percent of a value, share as a percentage, change between two numbers, markup, discount and VAT.

Create QR codes for links, Wi-Fi, contacts and email. Download as PNG or vector SVG. Free, no account, no redirect service that can expire.

Strip EXIF, GPS coordinates, camera details and other hidden metadata from photos. The check and the cleaning both run in your browser.

Count words, characters, sentences and paragraphs while you type. Shows reading time, speaking time and your most used words.