12-Hour to 24-Hour Converter
Turn AM/PM times into 24-hour military time — one time or a whole schedule.
All Tools
Every one of our 1329 tools in one place — free, no sign-up, and all of them run inside your own browser.
1329 free tools
11 categories
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Slugify for Developers
Turn any text into a safe slug, filename, anchor or branch name.
Bitwise Calculator
AND, OR, XOR, shifts and rotates, at 8 to 64 bits, shown in binary.
Semver Comparator
Compare two semantic versions and test them against a range.
Dockerfile Generator
Generate a production Dockerfile with multi-stage builds and layer caching.
CIDR Range Calculator
Work out a subnet: network, broadcast, host range and usable count.
ASCII Banner Generator
Turn text into a block-letter ASCII banner for a README or a CLI.
ULID Generator
Generate ULIDs — sortable by creation time and case-insensitive.
API Key Generator
Generate prefixed API keys in the format modern providers use.
JSON Flattener
Collapse nested JSON into one flat level of dot-notation or bracket keys.
Roth IRA Calculator
Tax-free growth, and whether Roth beats traditional for you.
Number Base Calculator
Convert a number between any two bases from 2 to 36.
Pythagorean Theorem Calculator
Find any side of a right triangle, with the working shown.
Scientific Calculator
Trigonometry, logarithms, powers and constants with full expression entry.
SVG to Data URI
Convert SVG to a CSS-safe data URI without Base64 bloat.
Barcode Generator
Generate EAN, UPC, Code 128 and Code 39 barcodes.
Mesh Gradient Generator
Create soft multi-colour mesh gradient backgrounds.
Duotone Generator
Map an image onto two colours for a bold graphic look.
Sprite Sheet Generator
Pack animation frames or icons into one sprite sheet.
Photo Collage Maker
Arrange several photos into a clean grid collage.
Remove Accents
Convert accented letters to their plain forms without losing the word.
Add Suffix
Put the same text at the end of every line.
Unindent Text
Remove indentation while keeping the relative nesting intact.
Text to NATO Alphabet
Spell out text using Alfa, Bravo, Charlie and the rest.
Octal to Text
Decode octal character codes back into text.
Random Word Generator
Draw random English words, filtered by length and letter.
Random Text Generator
Generate random strings from any character set you choose.
Hashtag Extractor
Pull the hashtags out of posts and rank them by use.
Zalgo Text Generator
Corrupt text with stacked combining marks.
Speech to Text
Dictate text with your microphone and edit it here.
Keyword Counter
Count how many times specific words or phrases appear in a text.
JavaScript Minifier
Remove comments and whitespace without breaking your code.
Bulk UTM Builder
Tag hundreds of links at once and export them as a spreadsheet.
URL Parser
Break any URL into its parts, query string included.
On-Page SEO Checker
Score a page against the on-page checks that actually matter.
Schema Markup Validator
Check JSON-LD for syntax errors and missing required fields.
Article Schema Generator
Build Article, NewsArticle or BlogPosting JSON-LD in one pass.
Word Frequency Counter
Rank every word and phrase in your text by how often it appears.
Sentence Counter
Count sentences and find the ones that run too long to read.
OpenAI API Request Builder
Build a chat API request for OpenAI, Claude, Gemini, Groq or Ollama in cURL, Python, JS or PHP.
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