SuperToolsOnline
100% Free No Uploads Instant Results

Free Online ToolsFast, Private & Simple

Convert, compress, and optimize files directly in your browser. No uploads required.

Files stay on your device

Processing is 100% browser-side via WebAssembly

No account required

No sign-up, no email, no password — ever

No tracking or analytics

We do not profile users or sell data

Free, always

97 tools, zero cost, no hidden tiers

Browse by Category

All Tool Categories

Six professional categories. Every tool is free, browser-native, and privacy-preserving.

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Simple Process

How It Works

No account. No server. Just instant results in your browser.

1

Select a Tool

Choose from 97 tools across PDF, Image, Video, Text, Calculator, and Developer categories.

2

Upload or Paste

Drag and drop a file, paste text, or fill a form. No sign-up, no subscription — ever.

3

Download Result

Your file is processed locally using WebAssembly. Download in seconds. Nothing is uploaded.

Complete Suite

Browse All Tools

Every tool is free, browser-native, and respects your privacy.

PDF Tools

17 tools

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Free JPG to PDF Converter - Convert & Merge JPG to PDF Online

Merge multiple JPG images into a single high-quality PDF online with our JPG to PDF Converter. 100% private browser processing ensures your sensitive photos stay secure—no uploads, no watermarks, and free to use.

Free PDF to Image Converter - Convert PDF to JPG & PNG Online

Free online PDF to image converter. Convert PDF pages to high-quality JPG, PNG images instantly. Batch conversion, 300 DPI, no uploads required. Secure browser-based tool for extracting images from PDFs.

Free Word to PDF Converter - Convert DOCX to PDF Online

Convert Word .docx files to professional PDFs with layout preservation. Features anti-cut logic to prevent text blocks from splitting.

PDF Merger - Combine Multiple PDFs Online

Combine multiple PDF documents into a single file online instantly with our PDF Merger. Reorder, arrange, and merge unlimited PDFs using drag-and-drop controls—no file size limits, no uploads, and completely free. Perfect for consolidating reports, contracts, and more with secure browser-based processing.

PDF Splitter - Extract Pages Online

Extract specific pages from your PDF documents online instantly with our PDF Splitter. Select pages to keep, remove unwanted sections, and create new PDFs from a single file—fast, secure, and 100% browser-based. No uploads, no risk, and unlimited use for free.

PDF Rotator - Fix Page Orientation

Rotate PDF pages 90°, 180°, or 270° online to fix orientation issues with our PDF Rotator. Correct individual pages independently with precise angle controls—lossless, high-quality rotation with no uploads or data sharing. Perfect for scanned documents and sideways pages.

PDF Compressor - Compress PDF Online Free

Shrink PDF files dramatically online while keeping content readable with our PDF Compressor. Compress large PDFs for email, cloud storage, or web uploads using an adjustable quality slider for perfect size-to-quality balance. Fast, private, and browser-based—no uploads or watermarks.

PDF Text Extractor - Extract Text from PDF

Extract all text content from PDFs online instantly with our PDF Text Extractor. Copy to clipboard or download as TXT file—perfect for data extraction, research, and document analysis. Supports multi-page documents, is fast, secure, and browser-based.

QR Tools

10 tools

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Free QR Code Creator - Generate Custom QR Codes Online with Logo

Generate free QR codes online with custom colors and your own logo using our QR Code Creator. Instantly create scannable codes for business, shop, events, and more—unlimited, high-quality, and 100% private browser processing.

QR Code Decoder

Decode QR codes from images online instantly in your browser with our QR Code Decoder. Upload an image and extract QR code data—fast, private, and supports all standard QR formats. No uploads, no risk, and works on any device.

WiFi QR Code Generator

Generate QR codes for WiFi networks online with password and security settings using our WiFi QR Code Generator. Instantly share WiFi access with guests, customers, or friends—secure, private, and works on any device.

Contact QR Code Generator - Create vCard QR Codes Free

Generate QR codes with complete contact information in vCard format online with our Contact/vCard QR Generator. Instantly share your name, phone, email, and more—perfect for business cards, networking, and digital sharing.

Batch QR Code Generator

Generate multiple QR codes at once online and download them as a ZIP file with our Batch QR Code Generator. Perfect for product labeling, inventory, campaigns, and bulk QR needs—fast, private, and browser-based.

Multi-Format QR Generator

Create QR codes for SMS, phone calls, emails, calendar events, and locations online with our Multi-Format QR Generator. Instantly generate special QR codes for any purpose—easy, free, and works on any device.

QR Code Resizer

Upload QR codes and resize them from 50% to 400% online with our QR Code Resizer. Instantly scale your QR codes for printing, displays, or web use—sharp, pixel-perfect resizing with no quality loss.

QR Scanner History

Track and manage your QR code scanning history locally in your browser with our QR Scanner History tool. View, copy, and clear your scan records—100% private, no cloud sync, and works offline.

Image Tools

15 tools

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Free Image Converter Online - Convert JPG, PNG, WebP & More

Convert images between PNG, JPG, and WEBP formats online with adjustable quality using our Image Format Converter. 100% local processing—no uploads, no risk, and instant download for web, design, or sharing.

Background Remover (Color Key)

Remove a solid background color and export a transparent PNG online with our Background Remover. No AI, no uploads—just fast, accurate color-key removal for product shots, UI assets, and more.

Image Resizer & Upscaler (Non-AI)

Resize or upscale images up to 4x online with high-quality canvas resampling using our Image Resizer & Upscaler. Fully offline, fast, and perfect for enlarging photos or graphics for web, print, or design.

Sprite Sheet Builder

Pack multiple frames into a single PNG sprite sheet online with custom columns and padding using our Sprite Sheet Builder. Perfect for web, game development, and animation—fast, private, and browser-based.

Favicon & App Icon Generator

Export multiple favicon PNG sizes (16–256px) from one source image online in a single ZIP with our Favicon & App Icon Generator. Instantly create all required icon sizes for web and apps—no uploads, no risk, and free to use.

Free Online Image Editor - Crop, Resize, Rotate & Edit Photos

Edit images in your browser: crop, resize, rotate, adjust brightness/contrast, add watermark or text overlay—no upload required. Our Image Editor is privacy-first, fast, and perfect for quick edits, design, or social media.

Free Image Compressor Online - Compress JPG, PNG & WebP Without Losing Quality

Reduce file size for JPG, PNG, and WEBP images online while keeping quality with our Image Compressor. Optimize web assets for faster load times, better SEO, and easier sharing—fast, private, and browser-based.

Bulk Image Minifier & Optimizer

Batch process and optimize multiple images simultaneously online with our Bulk Image Minifier & Optimizer. Minify dozens of files at once and download as a single ZIP archive—perfect for developers, designers, and webmasters. Fast, secure, and browser-based.

Text Tools

19 tools

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Free Word Counter Online - Count Words, Characters, Sentences

Count words, characters, and sentences in real-time online with our Word Counter & Text Analyzer. Instantly analyze your text for SEO, writing, or academic needs—secure, private, and lightning-fast. No limits, no registration, and works on any device.

Free Case Converter Online - Convert Text to Uppercase, Lowercase, Title Case

Instantly convert text between UPPERCASE, lowercase, Title Case, and more online with our Case Converter & Text Formatter. Clean and format your content for publishing, coding, or social media—fast, secure, and browser-based with no data saved.

Lorem Ipsum Generator

Generate Lorem Ipsum placeholder text online instantly for your designs, websites, or mockups. Create paragraphs, sentences, or words of classic Lorem Ipsum with one click—perfect for designers, developers, and content creators who need fast, customizable filler text. No registration, no limits, and works on any device.

Text to Speech Converter

Convert text to natural-sounding speech online instantly with our Text to Speech Converter. Listen to your written content using your browser’s built-in speech synthesis—ideal for proofreading, accessibility, language learning, and more. No downloads, no signups, and works offline.

Find and Replace Online - Instant Text Replacement Tool

Find and replace text in bulk online with our fast, browser-based Find & Replace Tool. Instantly search and update words or phrases in your content, with optional case-sensitive matching. Perfect for editing documents, code, or large text files—no data leaves your device.

Remove Duplicate Lines

Remove duplicate lines from your text online instantly with our Duplicate Line Remover. Clean up lists, code, or documents and keep only unique lines—fast, private, and browser-based. No uploads, no risk, and works on any device.

Sort Lines Tool

Sort lines of text alphabetically online in ascending (A-Z) or descending (Z-A) order with our Sort Lines Tool. Organize lists, code, or any line-based content instantly—no installation, no data sharing, and fully mobile-friendly.

Whitespace Remover

Remove extra spaces, tabs, and line breaks from your text online with our Whitespace Remover. Instantly clean up messy formatting from PDFs, websites, or documents—fast, secure, and browser-based with no data stored.

Calculators

14 tools

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Age Calculator

Calculate your exact age in years, months, and days online with our Age Calculator. Instantly see a detailed breakdown of your age, including leap years and lifetime statistics—perfect for personal, legal, or educational use. No registration, no data stored.

BMI Calculator

Check your Body Mass Index (BMI) and weight category online using Metric or Imperial units with our BMI Calculator. Instantly assess your health based on official WHO guidelines—fast, accurate, and private.

Percentage Calculator

Calculate percentages, growth rates, and proportions online with our Percentage Calculator. Instantly solve math problems for finance, shopping, school, or data analysis—fast, accurate, and browser-based.

Tip & Bill Splitter

Calculate tip, tax, and split bills per person online with our Tip & Bill Splitter. Instantly see totals for group dinners, teams, or quick checkouts—easy to use, mobile-friendly, and private.

Loan & EMI Calculator

Compute monthly payments, total interest, and total cost for any loan online with our Loan & EMI Calculator. Instantly see your loan breakdown for mortgages, auto loans, or personal finance—no registration, no data sharing.

Compound Interest & Savings

Project savings growth with monthly contributions and compounding interest online using our Compound Interest & Savings Calculator. Instantly see future balance, interest earned, and principal breakdown—perfect for financial planning and investment analysis.

Currency Converter

Convert between popular currencies online instantly with our Currency Converter. Enter amounts, pick currencies, and see converted values using editable sample rates—works fully offline, fast, and private.

Unit Converter

Convert length, weight, and temperature units online instantly with our Unit Converter. Switch between metric and imperial units for science, cooking, or travel—fast, accurate, and works offline.

Developer Tools

22 tools

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JSON Formatter & Validator Online

Format, validate, and beautify JSON data online for free with our advanced JSON Formatter. Instantly detect errors, improve readability, and debug APIs or structured data in your browser—no installation or registration required. Perfect for developers, data analysts, and anyone working with JSON who values privacy and speed.

Free Password Generator Online - Generate Strong & Secure Passwords Instantly

Generate strong, random, and secure passwords online with our free Password Generator. Customize password length and character types to protect your accounts from hacking and unauthorized access. All password creation is done instantly in your browser for maximum privacy—no data is ever stored or sent to a server.

Free UUID Generator Online - Generate UUID v4, v1, v7 Instantly

Create random UUID version 4 (v4) identifiers online instantly with our UUID Generator. Ideal for developers, database administrators, and API designers who need globally unique IDs without collisions. Fast, secure, and browser-based—no signup or installation required.

Base64 Encoder & Decoder

Easily encode text or files to Base64 and decode Base64 strings online with our free, secure Base64 Encoder & Decoder. Perfect for developers handling API data, debugging web responses, or preparing encoded content. All processing is local and private—no uploads or data storage.

Free Online Regex Tester & Validator

Test, debug, and validate regular expressions online with our free Regex Tester. Instantly see real-time matches, apply flags, and fine-tune your regex patterns in a secure browser environment. No installation, no data sharing—ideal for developers, QA, and students.

Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa online with our Timestamp Converter. Instantly transform epoch time for development, debugging, or data analysis. Fast, accurate, and secure—no data leaves your browser.

Color Picker & Converter

Pick colors and convert between HEX, RGB, and HSL formats online with our Color Picker & Converter. Instantly preview, copy, and use color codes for web design, graphics, and development. 100% browser-based, fast, and private.

Markdown Previewer

Write, edit, and preview Markdown online with live rendering using our Markdown Previewer. Instantly see formatted output as you type—perfect for documentation, notes, and content creation. No uploads, no registration, and works on any device.

Why SuperToolsOnline

Built for Speed, Privacy & Simplicity

Real, verifiable benefits — no marketing fluff.

Browser-Native Speed

Powered by WebAssembly. No server round-trips. Results appear in milliseconds.

True Privacy

Your files never leave your device. Zero server uploads. Zero data collection.

Always Free

No subscriptions, no credit cards, no feature gates. Every tool, free forever.

Works Everywhere

Any modern browser on desktop, tablet, or mobile. No installation needed.

No File Size Limits

Process files up to your device's memory capacity. No artificial restrictions.

20+ Developer Tools

JSON, Base64, UUID, diff checker, minifier, cron builder and more.

Constantly Growing

New tools added regularly. Suggest a tool and we'll build it.

No Signup Required

Open any tool and start immediately. No email, no account, no password.

Transparency First

Why You Can Trust SuperToolsOnline

We believe trust is built through transparency, not testimonials. Here's exactly how the platform works:

Runs entirely in your browser

All processing uses WebAssembly (WASM) — the same technology that powers Figma and Google Earth. Your CPU does the work, not our servers.

Files are not stored on our servers

Because we don't upload files at all. There is no upload step. Files are read from your device, processed in memory, and downloaded — that's it.

No account or email needed

We don't collect personal information. No registration flow, no cookies beyond essential site function, no remarketing.

Privacy policy is plain English

We have a privacy policy written in plain language. We don't hide what we collect (which is minimal) in legal jargon.

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Free Online Tools for Image, Video, PDF & Developer Utilities

SuperToolsOnline is a free, browser-native utility platform with 97 professional tools across six categories: PDF, Image, QR Code, Text, Calculator, and Developer Tools. Every tool runs entirely inside your browser using WebAssembly "” your files are never uploaded to any server.

Image Converter & Compressor

Our free image compressor reduces JPG, PNG, and WebP sizes without visible quality loss. The image format converter handles JPG ↔ PNG ↔ WebP conversions. Other tools include background remover, image resizer, watermark tool, and GIF maker.

PDF Tools — Merge, Split, Convert

Our free PDF tools cover every common document task. Merge PDFs, split documents, compress PDFs, and convert between formats. The JPG to PDF and PDF to Word converters are the most-used tools on the platform.

Video Converter — Free & Browser-Based

The free online video converter supports MP4, AVI, MOV, MKV, WebM and more "” powered by FFmpeg WebAssembly. No uploads, no watermarks, no file size cap.

Developer Tools & Calculators

Developer tools include JSON formatter, Base64 encoder, UUID generator, binary-to-hex, CSS/JS minifier, diff checker, cron builder, and IP lookup. Calculators cover finance, health, and academic use cases.

SuperToolsOnline is built for privacy. No account, no data retention, no server uploads. Works on Chrome, Firefox, Safari, and Edge across desktop and mobile.

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Frequently Asked Questions

Honest answers about privacy, security, and how the platform works.

QIs SuperToolsOnline really free?

Yes, completely free. All 97 tools are available without any account, subscription, or credit card. There are no premium tiers or locked features.

QAre my files uploaded to a server?

No. Files are never uploaded. All processing happens in your browser using WebAssembly — the same technology used by professional web apps like Figma. Your files never leave your device.

QIs my data secure?

Yes. Because files are processed locally and never transmitted, there is nothing to intercept or breach. Close the tab and all temporary data is discarded by your browser.

QDo I need to create an account?

No. You can open any tool and start using it immediately. No registration, no email, no password required.

QAre there file size limits?

There are no server-side limits. Very large files may be slower depending on your device's CPU and RAM, but there is no artificial restriction.

QWhat browsers are supported?

All modern browsers: Chrome, Firefox, Safari, and Edge on desktop and mobile. WebAssembly is widely supported. Internet Explorer is not supported.