242 free tools across 13 categories. Pick a category or search to jump straight to what you need.
Optimize and edit images entirely in your browser — compress, resize, crop, convert between JPEG/PNG/WebP, remove backgrounds, read or strip metadata, and more. No uploads required.
Work with PDFs and files locally: merge, split, compress, rotate, watermark, protect and convert PDFs, plus zip/unzip archives — all processed on your device.
Everyday text utilities — count words and characters, change case, clean and dedupe lines, find and replace, compare text, extract emails/URLs, and speak or dictate text.
SEO and marketing helpers — keyword density, readability, meta pixel and SERP previews, Open Graph, robots.txt, sitemaps, Schema.org, UTM and share links, hashtags and slugs.
Utilities for developers — format and validate JSON/HTML/CSS/SQL, encode and decode, test regex, build CSS and cron expressions, generate git/docker commands, and more.
Convert between units, temperature, speed, number bases and colour formats, and transform data between CSV, XML and TXT — all in your browser.
Security utilities — generate SHA/MD5/HMAC hashes, hash any file, create strong passwords and UUIDs, and decode JWTs, all locally on your device.
Network lookups — find your IP, resolve DNS records, run WHOIS, check SSL certificates and HTTP headers, and test latency. These run as secure server-side lookups.
Fast, accurate calculators for money and math — loans, mortgages, interest, tax, margins, percentages, ratios, fractions, GPA and more.
General health estimates — BMI, daily calories, water intake, ideal weight and body fat. Informational only, not medical advice, and nothing is stored.
Work with dates and time — calculate exact ages and spans, count business days, convert timestamps, and use a stopwatch and countdown timer.
Randomizers and fun tools — roll dice, flip coins, pick winners, generate random numbers and words, translate Morse, and convert pet ages.
Practical calculators for online earners — estimate YouTube, TikTok and blog income, work out ad metrics like CPM, CPC, CTR and ROAS, size up e-commerce margins, and price freelance work.
Shrink JPG, PNG and WebP files while keeping good visual quality.
Change image dimensions by pixels or percentage with locked aspect ratio.
Convert between JPEG, PNG and WebP with batch support and quality control.
Combine several PDFs into one, reorder pages with keyboard-friendly controls.
Count words, characters, sentences and reading time as you type.
Convert text to UPPER, lower, Title, camelCase, snake_case and more.
Format, validate and minify JSON with error locations and highlighting.
Work out exact age in years, months and days, plus next birthday.