Free Online Tools for Everyone
76 browser-based tools for images, text, code, calculations and more. No sign-up. No uploads. No throttling.
Utylo is a collection of small, focused web tools for the tasks that come up a dozen times a week: compressing a photo before you email it, reformatting a block of JSON so you can actually read it, counting the characters in a tweet, converting kilometres to miles, generating a strong password, or checking what your public IP address is. None of these jobs deserves a desktop application, a sign-up form, or a "free trial that automatically renews". They deserve a webpage that loads fast, does the job, and leaves you alone.
Almost every tool on Utylo runs entirely in your browser. When you compress an image, the compression happens on your own computer using the Canvas API. When you hash a string, the computation runs through Web Crypto inside the tab you have open. Your files, text and numbers are never uploaded to our servers β because we don't have servers doing that kind of work. You can verify this yourself by opening the network inspector and watching for requests that never come.
That is also why Utylo does not require you to sign in, confirm an email, watch an interstitial ad, or wait in a queue. There is no data for us to tie to an account. You open a tool, you use it, you close the tab.
πΌοΈImage Tools
Compress, resize, crop, convert and watermark images without ever uploading them. Every image tool runs locally in your browser, so your photos stay on your device.
Image Compressor
Compress images to reduce file size without losing quality
Image Resizer
Resize images to any dimension while maintaining aspect ratio
Image Converter
Convert images between PNG, JPEG, WebP and other formats
Image Cropper
Crop images to any size with a visual drag-and-drop editor
Image Watermark
Add text watermarks to your images with tiled or positioned placement
Favicon Generator
Generate favicons from text or images in multiple sizes
SVG to PNG
Convert SVG files or code to PNG images at any scale
Meme Generator
Create memes with custom text on your images
Social Image Resizer
Resize images for Facebook, Instagram, Twitter, LinkedIn and YouTube
πText Tools
Count words and characters, compare two documents, convert case, generate placeholder copy, or transform text into Unicode font styles for social media bios.
Word Counter
Count words, characters, sentences and paragraphs in your text
Case Converter
Convert text between uppercase, lowercase, title case and more
Lorem Ipsum Generator
Generate placeholder text for your designs and mockups
Character Counter
Count characters with and without spaces, great for social media limits
Text Diff
Compare two texts and find the differences between them
Text Rewriter
Rewrite text using synonyms, make it more formal, shorter or longer
Fancy Text Generator
Convert text to bold, italic, circled and other Unicode font styles
Text to Speech
Convert text to speech using your browser's built-in speech synthesis
Emoji Picker
Browse, search and copy emojis to your clipboard
Email Signature Generator
Create professional HTML email signatures for Gmail and Outlook
π»Developer Tools
Format and validate JSON, decode JWTs, test regular expressions, hash strings, minify HTML, CSS and JavaScript, and generate cron expressions β all from the browser.
JSON Formatter
Format, validate and beautify JSON data instantly
Base64 Encoder/Decoder
Encode and decode text to and from Base64 format
URL Encoder/Decoder
Encode and decode URLs and query parameters
Color Picker
Pick colors and convert between HEX, RGB, HSL formats
Markdown Previewer
Write Markdown and see a live preview of the rendered output
Hash Generator
Generate SHA-1, SHA-256, SHA-384, SHA-512 hashes from text
UUID Generator
Generate random UUIDs/GUIDs for your applications
CSV to JSON
Convert CSV data to JSON format and vice versa
RGB/HEX Converter
Convert colors between RGB and HEX formats
Regex Tester
Test regular expressions with live matching and highlighting
JWT Decoder
Decode and inspect JSON Web Tokens header and payload
Cron Expression Generator
Build cron expressions with a visual editor and descriptions
HTML Minifier
Minify HTML to reduce file size or beautify for readability
CSS Minifier
Minify CSS to reduce file size or beautify for readability
JavaScript Minifier
Minify JavaScript by removing comments and whitespace
SQL Formatter
Format and beautify SQL queries with proper indentation
.htaccess Generator
Generate .htaccess rules for HTTPS, redirects, caching and more
Chmod Calculator
Calculate Linux file permissions in numeric and symbolic notation
IP Address Lookup
Look up IP address details including location, ISP and timezone
πSEO & Marketing
Generate meta tags, preview how a page looks in Google search results and on social media, build UTM-tagged campaign URLs, and produce sitemaps and robots.txt files.
Meta Tag Generator
Generate SEO meta tags, Open Graph and Twitter cards for your site
Open Graph Preview
Preview how your site looks when shared on social media
Google SERP Preview
Preview how your page appears in Google search results
UTM Link Builder
Create UTM-tagged URLs for tracking marketing campaigns
Robots.txt Generator
Generate robots.txt to control search engine crawling
Sitemap Generator
Generate XML sitemaps for better search engine indexing
π’Math & Finance
Quick financial and everyday calculators: tips, splits, percentages, loans, mortgages, compound interest, BMI, GPA, fuel costs and more.
Percentage Calculator
Calculate percentages, increases, decreases and more
Tip Calculator
Calculate tips and split bills easily
Loan Calculator
Calculate monthly payments, interest and amortization
BMI Calculator
Calculate your Body Mass Index and health category
GPA Calculator
Calculate your Grade Point Average from courses and grades
Compound Interest Calculator
Calculate compound interest with monthly contributions over time
Mortgage Calculator
Calculate mortgage payments including taxes and insurance
Discount Calculator
Calculate sale prices, savings and discount percentages
Fuel Cost Calculator
Calculate fuel cost for your trip based on distance and efficiency
Electricity Calculator
Calculate electricity cost of running your appliances
Random Number Generator
Generate random numbers within a range with unique mode
Dice Roller
Roll virtual dice β d4, d6, d8, d10, d12, d20, d100
πConverters
Convert between metric and imperial units, temperatures, numeric bases and major world currencies with up-to-date rates.
Unit Converter
Convert between length, weight, volume and other units
Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal
Currency Converter
Convert between 30+ currencies with live exchange rates from the ECB
π Date & Time
Count days between dates, calculate exact ages, convert times across zones, run countdowns, stopwatches and Pomodoro timers for focused work.
Countdown Timer
Set a countdown timer for any event or deadline
Age Calculator
Calculate your exact age in years, months and days
Date Difference
Calculate the number of days between two dates
Timezone Converter
Convert times between time zones and see world clocks
Stopwatch
A precise stopwatch with lap tracking
Pomodoro Timer
Stay focused with 25 min work and 5 min break cycles
β‘Generators
Create strong random passwords and scannable QR codes for URLs, Wi-Fi, contact cards and plain text.
π±Social Media
Count characters for each social network, format Instagram bios with Unicode spacing, and download YouTube thumbnails in every available resolution.
π‘οΈPrivacy & Security
See what your browser is telling the world, generate starter privacy policies and terms, and check your public IP and screen resolution.
Privacy Policy Generator
Generate a free privacy policy for your website
Terms of Service Generator
Generate free Terms of Service for your website
What Is My IP
See your public IP address, location and ISP instantly
Browser Info
See detailed info about your browser, device and connection
Screen Resolution
Detect your screen resolution, viewport and pixel ratio
Latest guides
In-depth, original explainers from the team behind the tools.
Images Β· 8 min read
How to Compress Images for the Web Without Losing Quality
A practical guide to image compression: which format to choose, what quality level to use, when to resize before compressing, and how to keep type-heavy images from turning to mush.
Developer Β· 9 min read
A Practical Guide to JSON: Formatting, Validating and Converting
JSON is everywhere, but it is easy to get wrong. A field guide to the syntax that trips people up, the difference between formatting and validation, and how to safely convert between JSON and CSV.
Privacy & Security Β· 7 min read
How to Create Strong Passwords (and Why Length Beats Complexity)
What actually makes a password strong in 2026, why the old advice about special characters is misleading, and how to use a password generator without falling into common traps.
Why people use Utylo
Private by design
Files and text are processed locally in your browser. Nothing is uploaded to our servers for the tools that don't require an external lookup.
Free without limits
Every tool is fully usable without an account, payment, or usage cap. Display ads are the only thing keeping the lights on.
Fast and lightweight
The site is a static Next.js build served from a global CDN. Tools open in under a second on a typical connection.
Plain and honest
No fake download buttons, no manufactured urgency, no "Pro" tier holding the useful features hostage. Each tool does what its name says.
Frequently asked questions
Is Utylo really free?
Yes. Every tool is free to use as many times as you like. The site is paid for by display advertising, which lets us keep Utylo running without charging visitors or selling data.
Are my files uploaded when I use a tool?
Almost never. The image, text, code, calculation and generator tools run entirely inside your browser. A small number of tools β most obviously the IP Address Lookup β rely on a third-party API because the data simply cannot be derived locally, and the tool page says so when that is the case.
Do I need to install anything?
No. Utylo is a website. Everything works in any modern browser (Chrome, Firefox, Safari, Edge) on desktop or mobile. There are no browser extensions, no desktop apps, and no accounts to create.
Can I use the output commercially?
Yes. Anything produced by the tools β compressed images, formatted JSON, generated passwords, sitemap XML and so on β belongs to you and can be used for any purpose. See the Terms of Service for the precise wording.
How can I suggest a new tool?
Please do β most of the tools here started as a suggestion. Send a note through the Contact page with a short description of the problem you're trying to solve.