All tools
252 free tools across 14 categories. Pick a category or search to jump straight to what you need.
Image Tools
Optimize and edit images in your browser — compress, resize, crop, convert JPEG/PNG/WebP, read or strip metadata, and more. No uploads required.
PDF & Files
Work with PDFs and files locally: merge, split, compress, rotate, watermark, protect and convert PDFs, plus zip/unzip archives — all processed on your device.
Text Tools
Everyday text utilities — count words and characters, change case, clean and dedupe lines, find and replace, compare text, and extract emails or URLs.
SEO & Marketing
SEO and marketing helpers — keyword density, readability, SERP and meta previews, Open Graph, robots.txt, sitemaps, Schema.org, UTM links and slugs.
Developer Tools
Developer utilities — format and validate JSON/HTML/CSS/SQL, encode and decode, test regex, build CSS and cron, and generate git and docker commands.
AI Tools
Practical AI helpers that run in your browser — scan copied text for hidden prompt injections and invisible characters, and clean content before pasting it into ChatGPT, Claude or Gemini.
Converters
Convert between units, temperature, speed, number bases and colour formats, and transform data between CSV, XML and TXT — all in your browser.
Security & Hashing
Security utilities — generate SHA/MD5/HMAC hashes, hash any file, create strong passwords and UUIDs, and decode JWTs, all locally on your device.
Network Tools
Network lookups — find your IP, resolve DNS, run WHOIS, check SSL certificates and HTTP headers, and test latency, via secure server-side requests.
Calculators
Fast, accurate calculators for money and math — loans, mortgages, interest, tax, margins, percentages, ratios, fractions, GPA and more.
Health & Fitness
General health estimates — BMI, daily calories, water intake, ideal weight and body fat. Informational only, not medical advice, and nothing is stored.
Date & Time
Work with dates and time — calculate exact ages and spans, count business days, convert timestamps, and use a stopwatch and countdown timer.
Fun & Random
Randomizers and fun tools — roll dice, flip coins, pick winners, generate random numbers and words, translate Morse, and convert pet ages.
Creator & Business Calculators
Plan creator and online-business income with calculators for RPM, CPM, CPC, CTR, ROAS, sponsorships, e-commerce fees, margins and freelance pricing.
Popular tools
Compress Image
Shrink JPG, PNG and WebP files while keeping good visual quality.
Resize Image
Change image dimensions by pixels or percentage with locked aspect ratio.
Convert Image
Convert between JPEG, PNG and WebP with batch support and quality control.
Merge PDF
Combine several PDFs into one, reorder pages with keyboard-friendly controls.
Word Counter
Count words, characters, sentences and reading time as you type.
Case Converter
Convert text to UPPER, lower, Title, camelCase, snake_case and more.
JSON Formatter
Format, validate and minify JSON with error locations and highlighting.
Age Calculator
Work out exact age in years, months and days, plus next birthday.