Every tool on ToolBox Hub, grouped by category.
Switch text between upper, lower, title, camel, snake, kebab and more.
Works offline
Live word, character, sentence and paragraph counts with reading time.
Compare two texts and see exactly what changed, by line, word or character.
Strip repeated lines from a list — or keep only the ones that repeat.
Turn a title into a clean URL slug, with correct German transliteration.
Convert text and files to and from Base64, with full Unicode support.
Percent-encode and decode URLs, query values and form data.
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 digests.
Read a JSON Web Token's header, payload and claims — without ever verifying it.
Convert text to HTML entities and back, named or numeric.
Pretty-print, minify and validate JSON with precise error locations.
Convert between HEX, RGB and HSL with a live preview and contrast check.
Check a colour pair against WCAG 2.1, and get the nearest passing colour.
Build a layered CSS box-shadow visually, with a live preview on light and dark.
Work out percentages, increases, decreases and reverse totals.
Body mass index in metric or imperial, with the healthy range for your height.
Convert length, weight, temperature, volume, area, speed and data.
Work out the tip and split the bill — evenly, or by what each person ordered.
Create strong, random passwords with a live strength estimate.
Generate UUID v4 and time-ordered v7 identifiers in bulk.
Generate placeholder paragraphs, sentences, words or list items.
Create QR codes for links, text, Wi-Fi, email and phone numbers.
Measure how fast you react, over several attempts.