Welcome to TechUtilBox
Free Online Developer, Text, SEO, and Utility Tools
100% free, blazingly fast browser-based processing, zero APIs required. Your all-in-one toolbox for daily tasks.
Why Choose TechUtilBox?
We designed these tools to be your fast, secure, and reliable daily companions.
Blazing Fast
All processing happens locally in your browser. No waiting on servers or slow internet connections.
100% Private
We don't send your data to any APIs. Everything you paste, convert, or calculate stays on your device.
Completely Free
No subscriptions, no hidden fees, no limits. Every single tool on this website is absolutely free and always will be.
Popular Tools
Our users' most frequently used utilities.
Word Counter
Instantly count words, characters, sentences, and paragraphs.
JSON Formatter
Beautify, validate, and format JSON data securely in your browser.
Image Compressor
Reduce image file sizes instantly without losing visible quality.
Password Generator
Create highly secure, random passwords customised to your needs.
QR Code Generator
Generate QR codes for URLs, text, Wi-Fi, and more instantly.
URL Slug Generator
Create clean, SEO-friendly URL slugs from any given text string.
Explore All Tools
Browse through our comprehensive collection of 40+ free utilities across 7 categories.
Text & Writing Tools
Word Counter
Count words and characters.
Character Counter
Count characters with/without spaces.
Case Converter
UPPER, lower, Title Case, etc.
Remove Duplicate Lines
Clean up redundant list items.
Text Sorter
Sort lines alphabetically.
Random Text Generator
Generate random strings.
Lorem Ipsum
Generate placeholder text.
Fancy Text Generator
Create stylish unicode fonts.
Text Diff Checker
Compare two text snippets.
Keyword Density Checker
Analyze word frequency.
Developer Tools
JSON Formatter
Format and validate JSON.
JSON → CSV Converter
Convert JSON arrays to CSV.
CSV → JSON Converter
Convert CSV data to JSON.
Base64 Encoder/Decoder
Encode/decode Base64 strings.
URL Encoder/Decoder
Encode/decode URL components.
HTML Entity Encoder
Convert < to < etc.
Regex Tester
Test Regular Expressions.
Color Code Converter
Convert HEX/RGB/HSL.
UUID Generator
Generate a v4 UUID/GUID.
Random Password
Generate highly secure passwords.
Calculators
Age Calculator
Calculate exact chronological age.
Percentage Calculator
Quickly calculate percentages.
Scientific Calculator
Compute complex mathematical functions.
Loan EMI Calculator
Calculate monthly loan payments.
Compound Interest
Calculate future investment value.
Unit Converter
Convert metrics like distance & mass.
Time Zone Converter
Convert time globally.
Date Difference
Days between two dates.
BMI Calculator
Calculate Body Mass Index.
Tip Calculator
Calculate gratuity easily.
Coding Utilities
HTML Minifier
Compress HTML code.
CSS Minifier
Compress CSS files.
JS Minifier
Compress JavaScript code.
HTML Beautifier
Format HTML properly.
CSS Beautifier
Format CSS clearly.
JS Beautifier
Format JavaScript code.
Markdown → HTML
Convert Markdown text to HTML.
HTML → Markdown
Convert HTML to Markdown format.
Code Diff Viewer
Compare syntax highlighted code.
Test Data Generator
Generate mock JSON/CSV data.
File Utilities
Image Compressor
Reduce file size client-side.
Image Resizer
Resize dimensions easily.
JPG → PNG
Convert JPG images to PNG.
PNG → JPG
Convert PNG images to JPG.
SVG Optimizer
Minify vector graphics.
PDF Page Splitter
Extract pages from PDF locally.
Merge Images to PDF
Combine images securely.
OCR Text Extractor
Extract text from images.
Image Metadata EXIF
View hidden structural data.
Color Palette Extractor
Generate palettes from images.
Security Tools
SHA256 Generator
Generate highly secure hashes.
MD5 Generator
Generate MD5 cryptographic hashes.
Password Strength
Check entropy and crack time.
Encryption Key Generator
Generate 128/256-bit keys.
Caesar Cipher
Encrypt text via shifting.
Text Encrypt/Decrypt
AES encrypt sensitive text locally.
QR Code Generator
Create QR codes dynamically.
QR Code Scanner
Scan using webcam instantly.
Random Token
Generate access tokens quickly.
Secure Note
Create cryptographically secured notes.
SEO & Web Tools
Meta Tag Generator
Create proper HTML meta tags.
Robots.txt Generator
Format search crawler instructions.
Sitemap Generator
Build basic XML sitemaps.
Open Graph Generator
Generate rich social sharing tags.
Keyword Grouping
Cluster similar SEO keywords.
Slug Generator
Create SEO-friendly URL slugs.
Heading Structure
Analyze semantic H1-H6 tags.
Link Extractor
Extract all URLs from text/HTML.
URL Slug Cleaner
Remove parameters/tracking from links.
Readability Score
Compute Flesch-Kincaid scale index.