Fast, simple and powerful tools for everyday tasks. All 242+ tools are free, secure and work right in your browser.
242+
Free tools
13
Categories
100%
In your browser
$0
No sign-up
Find the perfect tool for your needs from our organized collection.
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.
The tools people reach for most often.
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.
We build tools that respect your time and privacy — fast, free and safe.
Files run in your browser. Your data stays with you.
Use every tool instantly without creating an account.
Every tool is 100% free with no hidden fees.
Fast, responsive and touch-friendly on any device.
Three simple steps to get started.
Search or browse 242+ tools across 13 categories.
Open the tool and use it directly in your browser — no upload.
Download or copy your result. Nothing is stored or sent anywhere.
Everything you need to know about OomTools.
Yes. Every tool on OomTools is free to use with no account required. We show non-intrusive ads to support the site, but the tools themselves are always free.
No. There's no sign-up, email, or paywall — just open a tool and use it.
Yes. Image, PDF and text tools process your data locally in your browser, so your files never leave your device. A few tools (like DNS/SSL lookups and the currency rate list) use a server request, and those are clearly labelled.
Yes. Every page is mobile-first and the interactive controls, including image cropping and PDF reordering, are designed for touchscreens.
Use the Contact page to suggest a tool — we're adding new ones regularly.
No sign-up, no watermarks, nothing leaves your device. Just pick a tool and get it done.