Free Online Tools
for Everyday Tasks
Less busywork. More getting things done. Simple, useful tools for writing, creating, building, and everything in between.
Popular tools
Everyday essentials, ready when you need them.
Word Counter
Count Unicode words and check reading length.
Text & WritingImage Compressor
Re-encode an image at your chosen JPEG quality.
Image & GraphicsDNS Lookup
Query A, AAAA, MX, TXT and NS records from a live resolver.
DNS & NetworkJSON Formatter
Parse JSON and indent it for readability.
JSON & DeveloperLength Converter
Convert metres, kilometres, centimetres, inches and feet.
Unit ConvertersPercentage Calculator
Calculate a chosen percentage of a value.
Calculators & MathAge Calculator
Calculate completed years, months and days between two dates.
Date & TimeMeta Title Length Checker
Count title characters against an editorial guideline.
Web & SEOFind your toolkit
Eight categories. Plenty of ways to make your day easier.
Text & Writing
Count, clean, compare and transform your writing. Text stays in your browser.
Image & Graphics
Resize, convert and inspect images with bounded processing and no permanent image storage.
DNS & Network
Query live DNS resolvers and inspect public websites using bounded, SSRF-protected requests.
JSON & Developer
Format structured data, encode values and debug developer inputs without sending private content to a server.
Unit Converters
Convert defined physical and digital units using explicit factors and temperature formulas.
Calculators & Math
Solve everyday arithmetic and financial scenarios with visible formulas and stated assumptions.
Date & Time
Work with calendar dates, elapsed durations and explicit IANA time zones, including daylight saving transitions.
Web & SEO
Inspect markup, generate web configuration and run controlled website checks with clearly stated validation limits.
A little help goes a long way.
From your first draft to your next build, there’s a tool for that.
Recently added
More useful ways to work.
Synthetic User Agent Generator
Generate a Chrome-on-Linux User-Agent template from an entered major version. It is synthetic test data, not a current browser database.
Web & SEOUser Agent Parser
Extract common browser, operating system and device hints from a supplied User-Agent string. This is a heuristic; strings can be spoofed or reduced.
Web & SEOURL Slug Validator
Check whether a supplied slug uses lowercase ASCII letters and digits separated by single hyphens.
Web & SEOHTTP Status Code Reference
Look up the standard reason phrase for a supported HTTP status code using Symfony response definitions. This tool processes bounded inputs on this server without retaining submitted content.
JSON & DeveloperTips, guides & good ideas
Understand the how and why behind your results.
How to calculate percentage change
Work through increases, decreases and the special case of a zero starting value.
Read guide →Practical guideHow to validate and format JSON
Find common JSON syntax errors and distinguish formatting from schema validation.
Read guide →Practical guideWord counts: what counts as a word?
Understand punctuation, Unicode text and why two word counters can disagree.
Read guide →A few things you might wonder
Do I need an account to use these tools?
No. All public tools work without registration. Accounts are only used by site administrators.
Does my input leave my device?
Each tool shows its processing mode above the controls. Browser tools keep your input on your device. Server tools, including image processing, network diagnostics, file utilities and some developer tools, send inputs to this server. Temporary uploads are not retained, and usage counters contain no submitted text.
Can I use these tools on my phone?
Yes. The interface adapts to mobile screens. Very large images or text may take longer on devices with less memory.
How can I report an incorrect result?
Use the contact form and include the tool name, a non-sensitive example and the expected result.