Free online tools that just work
Free online tools that just work. Fast, private, no signup. 300 tools, all offline-capable and free forever.
Most used tools
- Age CalculatorAge Calculator — free online tool. Counted the way a calendar counts: the leap days and month lengths are handled, so the years/months/days answer is what you would write on a form. Works on mobile and offline.
- Percentage CalculatorPercentage Calculator — free online tool. This is the everyday percentage case: GST on a price, a tip, a discount, a salary hike. Works on mobile and offline.
- EMI CalculatorEMI Calculator — free online tool. The EMI is fixed for the whole tenure. Works on mobile and offline.
- GST CalculatorGST Calculator — free online tool. Use Add GST when you know the pre-tax price, and Remove GST when the bill already includes tax — the two directions give different answers, which is the most common GST arithmetic mistake. Works on mobile and offline.
- SIP CalculatorSIP Calculator — free online tool. The result depends entirely on how long you stay invested, not on timing the market. Works on mobile and offline.
- BMI CalculatorCalculate your BMI using your weight and height. Understand your weight category: underweight, normal, overweight, or obese.
- Word CounterThis word counter tool provides counts for words, characters, sentences, lines, and paragraphs. Paste your text to get instant statistics.
- Case ConverterThis online case converter tool transforms your text to uppercase, lowercase, title case, or sentence case. Paste your text and convert.
- JSON FormatterThis JSON Formatter tool helps you pretty-print JSON data. It indents and structures your JSON for better readability and debugging.
- Password GeneratorGenerate strong, random passwords. Customize password length and select character types: letters, alphanumeric, or all symbols. Free online tool.
- QR Code GeneratorCreate QR codes for free. Enter text or a URL, set the size in pixels, and download your custom QR code instantly.
- Unit ConverterThis Unit Converter tool converts values across various units. Select your category, input a value, and choose your from and to units.
Browse by category
- Calculators141 tools — Finance & Math
- Converters31 tools — Unit & Data
- Formatters19 tools — Text & Code
- Generators44 tools — Security & Web
- Checkers65 tools — Validation & Stats
Recently added
- Capital Gains Tax on PropertyCapital Gains Tax on Property — free online tool. The July 2024 rules removed indexation and set 12. Works on mobile and offline.
- Tweet Length CalculatorTweet Length Calculator — free online tool. Both totals are shown because the rules differ: some platforms count spaces, others do not. Works on mobile and offline.
- Remove Duplicate WordsRemove Duplicate Words — free online tool. Fast, private, no signup. Works on mobile and offline.
- GB to MB ConverterGB to MB Converter — free online tool. Fast, private, no signup. Works on mobile and offline.
- Permalink GeneratorPermalink Generator — free online tool. Slugs should stay short, use hyphens instead of underscores, and drop stop words where possible. Works on mobile and offline.
- HTML Tag RemoverHTML Tag Remover — free online tool. Use this before pasting web content into editors, emails or CMS fields that mangle markup. Works on mobile and offline.
- YouTube Title Length CheckerYouTube Title Length Checker — free online tool. Two titles with the same character count can truncate differently — "TOOLS & SERVICES" is far wider than "Tools & services". Works on mobile and offline.
- Ratio SimplifierRatio Simplifier — free online tool. Fast, private, no signup. Works on mobile and offline.
How this site works
Every tool here is a single lightweight page. The maths runs in your own browser, so nothing you type is uploaded, logged or stored — there is no account, no cookie banner and no tracking pixel.
We check every calculator against worked examples before it goes live, and the pages are plain HTML so they load fast even on a weak mobile connection. If something ever gives a wrong result, we want to know about it.
Missing a tool you need? Tell us — requests shape what gets built next.