85 free online tools
in one fast place
Merge and compress PDFs, shrink images, calculate, convert, clean up text and check your SEO. No sign-up, no limits, nothing uploaded — every tool runs right inside your browser.
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All tools →PDF Tools
Merge, split, compress and convert PDF files without uploading them anywhere.
Image Tools
Compress, resize, crop and convert images right inside your browser.
Calculators
Everyday calculators for money, health, dates and study.
Converters
Units, numbers, time zones, data formats — converted instantly.
Text Tools
Count, clean, convert and rewrite text of any length.
SEO & Web
Meta tags, schema, robots, sitemaps and search-snippet previews.
Developer
Formatters, encoders, testers and generators for coding work.
Everyday
Timers, randomisers, notepads and other daily helpers.
Most popular
Age Calculator
Work out exact age in years, months, days, hours and minutes between any two dates.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text, with full Unicode support.
CSV to JSON Converter
Convert CSV to JSON and JSON back to CSV, with a live preview.
Calorie & TDEE Calculator
Estimate daily calories for maintaining, losing or gaining weight.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more.
Compress Image to Exact Size
Shrink a photo to a target file size like 20 KB, 100 KB or 1 MB.
Compress PDF
Reduce the file size of a PDF so it fits an upload limit.
Countdown Timer
Count down a duration or to a specific date, with an alarm when it ends.
📕 PDF Tools
See all 8 →Compress PDF
Reduce the file size of a PDF so it fits an upload limit.
Delete PDF Pages
Remove unwanted pages from a PDF and download what is left.
JPG to PDF
Turn photos into a PDF — one image per page, with page size and margins you control.
Merge PDF
Combine several PDF files into one, in any order you like.
PDF to JPG
Convert every page of a PDF into an image you can share or edit.
Reorder PDF Pages
Rearrange, reverse or duplicate the pages of a PDF.
Rotate PDF
Fix sideways or upside-down pages and save the corrected PDF.
Split PDF
Split a PDF into separate files by page range, one file per page, or fixed chunks.
🖼️ Image Tools
See all 10 →Add Watermark to Image
Put a text or logo watermark on one image or a whole batch.
Barcode Generator
Create Code 128, EAN, UPC and other barcodes as PNG or SVG.
Colour Picker from Image
Pick exact colours from a photo and pull out its main palette.
Compress Image to Exact Size
Shrink a photo to a target file size like 20 KB, 100 KB or 1 MB.
Image Compressor
Compress JPG, PNG and WebP images in your browser — no upload, no quality surprises.
Image Cropper
Crop a picture to any size or a fixed aspect ratio.
Image Format Converter
Convert between JPG, PNG and WebP right in your browser.
Image Resizer
Resize images to exact pixel dimensions or by percentage, with aspect-ratio lock.
🧮 Calculators
See all 14 →Age Calculator
Work out exact age in years, months, days, hours and minutes between any two dates.
BMI Calculator
Calculate Body Mass Index in metric or imperial units with the WHO category.
Calorie & TDEE Calculator
Estimate daily calories for maintaining, losing or gaining weight.
Date Difference Calculator
Count the days, weeks, months and working days between two dates — or add days to a date.
Discount Calculator
Work out the sale price, how much you save, and stacked discounts.
Fuel Cost Calculator
Work out what a trip costs in fuel, and split it between passengers.
GPA Calculator
Calculate your grade point average from letter grades or percentages.
Loan / EMI Calculator
Calculate monthly repayments, total interest and a full amortisation schedule.
🔁 Converters
See all 6 →Binary, Hex & Decimal Converter
Convert numbers between binary, octal, decimal, hex and base 36.
CSV to JSON Converter
Convert CSV to JSON and JSON back to CSV, with a live preview.
Number to Words Converter
Write any number in words, including rupees for cheques.
Roman Numeral Converter
Convert numbers to Roman numerals and back, with a breakdown.
Time Zone Converter
See one moment in time across as many cities as you need.
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates.
✍️ Text Tools
See all 11 →Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more.
Duplicate Line Remover
Remove duplicate lines, blank lines and extra spaces, then sort your list.
Fancy Text Generator
Turn plain text into bold, italic, script, bubble and upside-down styles.
Find and Replace Text
Replace words across a whole document, with regex and bulk rules.
Invisible Character Remover
Strip zero-width and hidden characters from pasted text.
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences, words or list items for mockups.
Remove Line Breaks
Fix text copied from a PDF where every line ends mid-sentence.
Text Sorter
Sort lines alphabetically, numerically, by length or by frequency.
🔍 SEO & Web
See all 9 →Favicon Generator
Create every favicon size your site needs from a single image, plus the HTML to link them.
Google SERP Preview
See how your title and description will look in search results.
Hreflang Tag Generator
Generate hreflang tags for multi-language sites in HTML, XML or headers.
Keyword Density Checker
Analyse which words and phrases dominate your text, with counts and density percentages.
Meta Tag Generator
Build SEO title, description, Open Graph and Twitter Card tags with live length checks.
Open Graph Preview
Preview and generate the tags that control how your link looks when shared.
Robots.txt Generator
Build a correct robots.txt with presets for WordPress, shops and staging sites.
Schema Markup Generator
Create JSON-LD structured data for articles, products, FAQs and businesses.
⚙️ Developer
See all 17 →.htaccess Redirect Generator
Build redirect, HTTPS, www and caching rules for Apache.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text, with full Unicode support.
CSS, JS & HTML Minifier
Strip comments and whitespace to make your code files smaller.
Color Converter & Picker
Convert colours between HEX, RGB, HSL and HSV and build tints, shades and palettes.
Cron Expression Generator
Translate a cron schedule into plain English and see its next run times.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text.
Image to Base64
Convert an image into a Base64 data URI for CSS, HTML or JSON embedding.
JSON Formatter & Validator
Beautify, minify and validate JSON with clear error messages.
🎲 Everyday
See all 10 →Countdown Timer
Count down a duration or to a specific date, with an alarm when it ends.
Dice Roller & Coin Flip
Roll up to twelve dice of any size, or flip coins, with running totals.
Online Notepad
A distraction-free notepad that saves automatically in your browser.
Random Number Generator
Generate one or many random numbers in any range, with no repeats if you need.
Screen Resolution Checker
Find your screen size, window size, pixel ratio and device details.
Spinner Wheel / Random Picker
Put names or options on a wheel and spin to pick a winner.
Stopwatch & Pomodoro Timer
A precise stopwatch with lap times, plus a pomodoro focus timer.
Text to Speech
Read any text aloud with the voices installed on your device.
📚 Latest guides
All guides →How to Split a PDF: Pages, Chapters and Scans
Four different splitting jobs and the right approach for each — pulling one page, breaking into sections, cutting for size, and fixing a double-sided scan.
PDFHow to Reduce PDF File Size for Email
Work out why your PDF is big before you compress it — and the scanner settings that stop the problem happening again.
MoneyHow to Write an Amount in Words on a Cheque
Why banks pay the words and not the figures, the lakh versus million problem, and the five mistakes that get a cheque returned.
Why use HSNRBK Tools?
Most "free" online tools ask you to register, watermark your output, or upload your private files to somebody else's server. This site does none of that. Every tool here is a small, self-contained utility that loads in under a second and does its work inside your own browser.
- Private by design — images, text and files you paste or drop are processed locally on your device and never leave it.
- No account, no limits — use any tool as many times as you like.
- Works on mobile — every tool is responsive and touch-friendly.
- Always growing — new tools are added regularly. Suggest one.