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Files and text are processed locally in your browser. We don’t upload or store your data.
Free Online Utilities
Useful tools that work right in your browser
Fast, free and privacy-friendly. Your text and files stay on your device while you work — perfect for everyday tasks, business and students.
19Free tools
6Categories
100%Browser based
0Sign-up needed
Most used
Popular tools
Start with these — they’re fast, useful and work on any device.
Popular
Most used
Word Counter
Instant word, character and reading-time stats for writers and SEO.
- Live word & character count
- Reading time estimate
- Sentence & paragraph stats
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Popular
Most used
JSON Formatter
Beautify, minify and validate JSON without sending data to a server.
- Pretty-print with indentation
- Minify for production
- Syntax validation
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Popular
Most used
Password Generator
Cryptographically strong passwords with custom length and character sets.
- Secure random generation
- Length 6–128 characters
- Symbol & number toggles
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Popular
Most used
QR Code Generator
Create scannable QR codes for websites, WhatsApp, phone, Wi-Fi, email and more.
- Website, WhatsApp, phone & SMS
- Email, Wi-Fi & contact cards
- Custom size & colour
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Popular
Most used
Image Compressor
Shrink JPEG, PNG and WebP images without uploading them anywhere.
- Adjustable quality slider
- JPEG, PNG & WebP output
- Before/after size comparison
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Popular
Most used
Merge PDF
Combine multiple PDF files into one document in your chosen order.
- Merge unlimited PDFs locally
- Preserves page order
- No file size upload limit*
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Full directory
Browse all 19 tools
Text, calculators, developer utilities, security, image and PDF tools — all free.
Text Tools
3 tools
Write, count and transform text.
Popular
Text Tools
Word Counter
Instant word, character and reading-time stats for writers and SEO.
- Live word & character count
- Reading time estimate
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Text Tools
Case Converter
Switch between uppercase, lowercase, title case and sentence case in one click.
- Four common case styles
- One-click conversion
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Text Tools
Lorem Ipsum Generator
Placeholder copy for mockups, wireframes and design reviews.
- Paragraphs, sentences or words
- Adjustable amount (1–50)
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Calculators
4 tools
Fast everyday health, finance and math calculations.
Calculators
Age Calculator
Exact age in years, months and days — including future dates.
- Years, months & days breakdown
- Calculate age on any date
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Calculators
BMI Calculator
Body Mass Index with metric or imperial units and category guidance.
- Metric (kg/cm) & imperial (lb/in)
- WHO-style BMI categories
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Calculators
Percentage Calculator
Solve percentage-of, what-percent, and percentage-change problems.
- Three common percentage modes
- Decimal-friendly inputs
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Calculators
EMI Calculator
Monthly loan payment, total interest and full repayment estimate.
- Years or months term
- Adjustable interest rate
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Developer Tools
3 tools
Format data and convert technical values.
Popular
Developer Tools
JSON Formatter
Beautify, minify and validate JSON without sending data to a server.
- Pretty-print with indentation
- Minify for production
Open tool
Developer Tools
Color Converter
Convert colours between HEX, RGB and HSL with a visual picker.
- Live colour preview
- HEX ↔ RGB ↔ HSL
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Developer Tools
Unit Converter
Convert length, weight, temperature, area and digital storage units.
- Five measurement categories
- Swap units instantly
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Security & QR
2 tools
Generate secure passwords and QR codes.
Popular
Security & QR
Password Generator
Cryptographically strong passwords with custom length and character sets.
- Secure random generation
- Length 6–128 characters
Open tool
Popular
Security & QR
QR Code Generator
Create scannable QR codes for websites, WhatsApp, phone, Wi-Fi, email and more.
- Website, WhatsApp, phone & SMS
- Email, Wi-Fi & contact cards
Open tool
Image Tools
3 tools
Compress, resize and convert images locally.
Popular
Image Tools
Image Compressor
Shrink JPEG, PNG and WebP images without uploading them anywhere.
- Adjustable quality slider
- JPEG, PNG & WebP output
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Image Tools
Image Resizer
Resize images to exact pixel dimensions with optional aspect-ratio lock.
- Custom width & height
- Lock aspect ratio
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Image Tools
JPG ↔ PNG Converter
Convert between JPG, PNG and WebP formats in your browser.
- JPG ↔ PNG ↔ WebP
- Preserves transparency (PNG/WebP)
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PDF Tools
4 tools
Create, merge, split and compress PDF files.
PDF Tools
Image to PDF
Combine one or more images into a single downloadable PDF.
- Multiple images in one PDF
- Drag to reorder (single file flow)
Open tool
Popular
PDF Tools
Merge PDF
Combine multiple PDF files into one document in your chosen order.
- Merge unlimited PDFs locally
- Preserves page order
Open tool
PDF Tools
Split PDF
Extract page ranges or split every page into separate PDF files.
- Extract selected pages
- Split all pages individually
Open tool
PDF Tools
PDF Compressor
Reduce PDF file size with adjustable quality — processed on your device.
- Three compression levels
- Progress indicator
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Instant results
No waiting in queues. Tools run on your device for fast, responsive output.
Always free
No subscriptions, no credits and no account required for any tool on this page.
Built for real work
Professional tools without the privacy trade-off
Whether you’re compressing a PDF, generating a WhatsApp QR code or counting words for SEO — DevRankHub tools are designed to be useful, fast and safe for everyday use.
