170+ free tools · no signup · private
Free Online Tools for Everyday Digital Work
170+ free utilities for text editing, developers, calculators, unit conversion, images and PDFs, plus AI generators — fast, private, and no signup required.
- Tools
- 170+
- Categories
- 10
- Cost
- $0
Popular Free Online Tools
Most used utilities on AtoZee Tech — word counter, JSON formatter, password generator, and more.
Browse Tool Categories
Text tools, development utilities, calculators, converters, and AI tools.
AI Tools
Coming soon — writing, code, social & SEO generators.
ExploreText Tools
Edit, count, convert, and clean text instantly with free online text utilities.
Open categoryImage Tools
Resize, convert, compress images and encode to Base64 — all in your browser.
Open categoryCalculators
Quick online calculators for percentages, discounts, age, and everyday math.
Open categoryUnit Converters
Convert length, area, volume, speed, currency, energy, and 30+ unit types instantly.
Open categoryBinary & Encoding Tools
Convert text, binary, hex, decimal, octal, and ASCII — plus Base64, URL, and HTML encoding.
Open categorySecurity & Secret Tools
Generate secure secrets, tokens, hashes, JWTs, API keys, and cryptographic values online for free.
Open categoryDevelopment Tools
A collection of useful online tools to clean up your JSON, remove whitespace, formatting, and more.
Open categoryWebsite & Developer Tools
Legal generators, encoding utilities, and developer helpers for everyday coding tasks.
Open categoryWebsite Management Tools
HTML, CSS, and JavaScript utilities, QR codes, URL tools, and IDs for managing your website.
Open categoryMiscellaneous Tools
Handy generators and converters for passwords, UUIDs, colors, and more.
Open categoryAI Tools — Coming Soon
We are preparing free AI writing, code, and marketing tools. Check back soon — no signup required when we launch.
All Free Online Tools
Complete directory of utilities on AtoZee Tech Tools, grouped by category.
Text Tools
View all 11 →Word Counter
Count words, characters, sentences, and paragraphs in your text instantly.
Use Word CounterCharacter Counter
Count characters with and without spaces for tweets, meta descriptions, and SMS limits.
Use Character CounterCase Converter
Convert text to uppercase, lowercase, title case, sentence case, and more.
Use Case ConverterText to Slug
Convert any text into a clean URL-friendly slug for SEO and filenames.
Use Text to SlugRemove Line Breaks
Remove line breaks and extra whitespace from copied text.
Use Remove Line BreaksText Repeater
Repeat text or lines multiple times with custom separators — ideal for test data, patterns, and lists.
Use Text RepeaterImage Tools
View all 21 →Image to Base64
Convert any image file to a Base64 data URL string for HTML, CSS, or APIs.
Use Image to Base64Image Resizer
Resize images to custom width and height with optional aspect ratio lock.
Use Image ResizerImage Compressor
Compress JPG and WebP images to reduce file size while controlling quality.
Use Image CompressorImage Format Converter
Convert images between PNG, JPEG, and WebP formats in your browser.
Use Image Format ConverterFlip Image
Flip images horizontally or vertically in your browser.
Use Flip ImageRotate Image
Rotate images 90°, 180°, 270°, or any custom angle.
Use Rotate ImageCalculators
View all 12 →Percentage Calculator
Calculate percentages, percentage change, and what percent one number is of another.
Use Percentage CalculatorAge Calculator
Calculate exact age in years, months, and days from a birth date.
Use Age CalculatorDiscount Calculator
Calculate sale price and savings from original price and discount percentage.
Use Discount CalculatorAverage Calculator
Calculate the mean (average) of a list of numbers.
Use Average CalculatorSales Tax Calculator
Calculate sales tax amount and total price from subtotal and tax rate.
Use Sales Tax CalculatorMargin Calculator
Calculate profit margin and markup from cost and selling price.
Use Margin CalculatorUnit Converters
View all 30 →Length Converter
Convert between meters, kilometers, miles, feet, inches, and more.
Use Length ConverterWeight Converter
Convert between kilograms, grams, pounds, ounces, and other weight units.
Use Weight ConverterTemperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly.
Use Temperature ConverterArea Converter
Convert area units — square meters, acres, hectares, square feet, and more.
Use Area ConverterVolume Converter
Convert volume between liters, gallons, cubic meters, and other units.
Use Volume ConverterEach Converter
Convert counting units — each, pair, dozen, score, and gross.
Use Each ConverterBinary & Encoding Tools
View all 26 →Base64 Encode
Encode text to Base64 for APIs, data URIs, and transmission-safe strings.
Use Base64 EncodeBase64 Decode
Decode Base64 strings back to readable plain text.
Use Base64 DecodeText to Binary
Convert plain text to binary (8-bit UTF-8 bytes).
Use Text to BinaryBinary to Text
Decode binary (8-bit groups) back to readable text.
Use Binary to TextHEX to Binary
Convert hexadecimal values to binary.
Use HEX to BinaryBinary to HEX
Convert binary to hexadecimal format.
Use Binary to HEXSecurity & Secret Tools
View all 27 →64-bit Secret Generator
Generate a cryptographically secure 64-bit secret (8 bytes) in hex, Base64, Base64URL, or unsigned decimal format.
Use 64-bit Secret Generator128-bit Secret Generator
Generate a secure 128-bit secret (16 bytes) as hex, Base64, Base64URL, or UUID-style string.
Use 128-bit Secret Generator256-bit Secret Generator
Generate a secure 256-bit secret (32 bytes) for encryption keys, signing secrets, and high-entropy tokens.
Use 256-bit Secret GeneratorAPI Key Generator
Generate API keys with atz_live, atz_test, or custom prefixes plus secure random suffixes.
Use API Key GeneratorSecret Key Generator
Generate configurable-length secret keys with uppercase, lowercase, numbers, and symbols.
Use Secret Key GeneratorRandom Token Generator
Generate URL-safe random tokens with adjustable length for sessions, CSRF, and API auth.
Use Random Token GeneratorDevelopment Tools
View all 13 →JSON Formatter
Format and beautify JSON with auto-repair for common syntax mistakes like missing brackets and trailing commas.
Use JSON FormatterJSON Validator
Validate JSON syntax and get clear error messages when structure is invalid.
Use JSON ValidatorJSON Viewer
Paste JSON and explore it as an interactive, collapsible tree with syntax-friendly formatting.
Use JSON ViewerJSON Editor
Edit JSON in the browser, validate syntax, and format output with readable indentation.
Use JSON EditorJSON Minify
Compress JSON by removing whitespace and line breaks for smaller payloads and faster transfers.
Use JSON MinifyXML to JSON
Convert XML documents to JSON for APIs, JavaScript apps, and modern data pipelines.
Use XML to JSONWebsite & Developer Tools
Privacy Policy Generator
Generate a customizable privacy policy draft for your website or app in seconds.
Use Privacy Policy GeneratorTerms and Conditions Generator
Generate terms and conditions tailored to your website, tools, or online service.
Use Terms and Conditions GeneratorDisclaimer Generator
Generate a website disclaimer for tools, blogs, and informational sites in seconds.
Use Disclaimer GeneratorWebsite Management Tools
View all 18 →URL Encode
Encode text for safe use in URLs and query strings.
Use URL EncodeURL Decode
Decode URL-encoded strings back to their original form.
Use URL DecodeHTML Encode
Encode special HTML characters to prevent rendering and XSS issues.
Use HTML EncodeHTML Decode
Decode HTML entities back to readable characters.
Use HTML DecodeUUID Generator
Generate RFC-compliant UUID v4 identifiers for databases and APIs.
Use UUID GeneratorHTML Beautifier
Format and indent messy HTML for readability.
Use HTML BeautifierMiscellaneous Tools
View all 9 →YouTube Thumbnail Downloader
Download YouTube video thumbnails in all available sizes — HD, SD, and default — from any video URL.
Use YouTube Thumbnail DownloaderPassword Generator
Generate strong random passwords with customizable length and character sets.
Use Password GeneratorMD5 Generator
Generate MD5 hash checksums from text using secure server-side hashing.
Use MD5 GeneratorColor Converter
Convert colors between HEX and RGB formats with live preview.
Use Color ConverterHEX to RGB Converter
Convert hexadecimal color codes to RGB values for CSS and design tools.
Use HEX to RGB ConverterRGB to HEX Converter
Convert RGB color values to hexadecimal codes for web and design.
Use RGB to HEX ConverterBuilt to be fast, private, and simple
Private by design
Most tools run entirely in your browser, so your text, images, and files never leave your device.
Instant results
No installs, no waiting on uploads. Paste, click, copy — most results appear as you type.
Free, no signup
Every standard tool is free to use without an account, with clear how-to guides and FAQs on each page.
Frequently Asked Questions
Are AtoZee Tech Tools free to use?
Yes. All standard online tools are free with no signup required. AI tools use your configured API provider.
Do you store my text or files?
Most tools run in your browser. We do not store tool inputs on our servers for standard utilities.
What types of tools are available?
Text tools, development utilities, calculators, unit converters, image tools, website tools, and 28+ AI generators.
How do I find a specific tool?
Use the search bar on the homepage or browse categories. You can also visit our blog for guides and recommendations.
Read guides on our blog or contact us.