I built 75+ free browser tools

#webdev #programming #productivity #beginners

I've been building websites and providing online technical support for more than 10 years. During that time I kept running into the same small problems again and again.

Things like converting files, compressing images, trimming media, formatting JSON, generating UUIDs, or quickly calculating something.

The tools exist, but they're scattered across dozens of different websites. Many require uploads, accounts, or have annoying limits.

So I started building my own collection of tools that solve these small tasks quickly and run entirely in the browser:

convert files
compress media
manipulate images
use developer utilities
run quick calculators
process text or network data

So I built this:

https://file-converter-free.com/

All tools run entirely inside the browser.

No uploads to servers
No accounts required
No limits
No watermarks

Your files stay on your device and disappear when the tab is closed.

File Converters

Convert many file types directly in your browser.

Image Converter — Convert images between formats such as PNG, JPG, WebP and more.
Video Converter — Convert video files into different formats.
Audio Converter — Convert audio files between formats.
Document Converter — Convert document files into different formats.
Presentation Converter — Convert presentation formats.
Ebook Converter — Convert ebook formats for different readers.
Archive Converter — Convert archive formats.
Font Converter — Convert font files between formats.

File Compressors

Reduce file sizes for easier storage and sharing.

Image Compressor — Compress images while maintaining quality.
Video Compressor — Reduce video file size.
Audio Compressor — Compress audio files.
Document Compressor — Reduce document file size.
Presentation Compressor — Compress presentation files.
Ebook Compressor — Reduce ebook size.
Archive Compressor — Create compressed archives.
Font Compressor — Reduce font file size.

Image Tools

Browser-based tools for editing and analyzing images.

Image Color Picker — Extract color values from images.
Image Editor — Adjust brightness, contrast and filters.
Image Resizer — Resize images to exact dimensions.
Image Crop — Crop images to custom areas.
Image Rotate & Flip — Rotate or flip images.
Image Watermark — Add text or logo watermarks.
Background Remover — Remove image backgrounds automatically.
Image to Base64 — Convert images into Base64 strings.
Image to PDF — Convert images into a PDF document.
Image Meta Editor — View or remove EXIF metadata.
Image Aspect Ratio Calculator — Maintain correct image proportions.
Favicon Generator — Generate favicon icon sizes.

PDF Tools

PDF Merge — Combine multiple PDF files into one.
PDF Split — Split PDFs by page ranges.

Media Tools

Video Clipper — Trim video files directly in the browser.
Audio Clipper — Trim audio files.

Developer Tools

JSON Formatter — Format JSON for readability.
JSON Validator — Validate JSON syntax.
JSON Tree Viewer — Explore JSON structures visually.
JWT Decoder — Decode JSON Web Tokens.
JWT Generator — Generate signed JWT tokens.
Base64 Encoder / Decoder — Encode or decode Base64 text.
URL Encoder / Decoder — Encode or decode URLs.
URL Parser — Analyze URL structure.
Hash Generator — Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.
UUID Generator — Generate UUID v4 identifiers.
Regex Tester — Test regular expressions.
HTML Minifier — Minify HTML.
CSS Minifier — Compress CSS.
JS Minifier — Minify JavaScript.
CSV Visualizer — Display CSV data as tables.

Calculator & Date Tools

Percentage Calculator — Calculate percentages and ratios.
Age Calculator — Calculate exact age from birth date.
Date Difference Calculator — Find the difference between two dates.
Time Duration Calculator — Add or subtract time durations.
Data Transfer Calculator — Estimate file transfer time.
Unit Converter — Convert between measurement units.
Timestamp Converter — Convert Unix timestamps to readable dates.
Weekday Finder — Find which day of the week a date falls on.
Loan Calculator — Calculate loan payments and interest.
Mortgage Calculator — Estimate mortgage payments.
Interest Calculator — Calculate simple or compound interest.
VAT Calculator — Add or remove VAT from prices.
Discount Calculator — Calculate prices after discounts.
BMI Calculator — Calculate body mass index.
Pregnancy Calculator — Estimate due dates and pregnancy stages.
Calorie Calculator — Estimate daily calorie needs.
Speed Calculator — Calculate speed, distance or time.
Electricity Cost Calculator — Estimate electricity cost of appliances.

Text Tools

Word Counter — Count words, characters and reading time.
HTML Encoder / Decoder — Encode or decode HTML entities.
Unicode Encoder / Decoder — Convert text to or from Unicode.
Duplicate Word Finder — Detect repeated words.
Remove Duplicate Lines — Remove repeated lines from text.
Lorem Ipsum Generator — Generate placeholder text.
Typing Speed Tester — Measure typing speed and accuracy.
Text Case Converter — Convert text between case styles.

General Tools

Password Generator — Generate secure random passwords.
QR Code Generator — Create QR codes from text or URLs.
Random Name Generator — Generate random names for testing.
IP Checker — Show your public IP and network info.
Browser Checker — Detect browser and device information.
Font Picker — Browse Google Fonts and generate CSS.
Random Number Generator — Generate numbers within a range.
Random Color Generator — Generate HEX, RGB or HSL colors.
Dice Roller — Simulate dice rolls.
Coin Flip — Flip a virtual coin.
Markdown Editor — Write and preview Markdown.
Random Address Generator — Generate realistic addresses for testing.

Looking for more tool ideas

If there is a tool you often search for online but struggle to find, hitting to subscription or limits, let me know. I will add it to the website as soon as possible as free.