Free Online Tools.
No Signup.
Tools for text, SEO, code, math and images, ready the moment you open them. No account, nothing to install.
Browse by Category
41 tools across 9 categories
Text Tools
Count words, characters and sentences, compare two versions, convert case, build URL slugs, and generate placeholder text or usernames
SEO Tools
Check your title and meta description against the width Google actually displays
Developer Tools
Format and validate JSON, convert Markdown to HTML, handle Base64 and percent-encoded URLs, and generate QR codes
Math & Numbers
Work out percentages and percentage change, and exact ages between two dates
Image & Media
Compress, resize and round the corners of an image, turn SVG artwork into PNG, or build a whole favicon set from one logo
Security & Crypto
Generate strong passwords and compute SHA-256 or MD5 hashes of any text
Converters
Convert a length between millimetres, metres, kilometres, inches, feet, yards and miles
Social Media
Check one post against the character limits of seven social platforms at once
PDF Tools
Join several PDFs into one document, in the order you decide, keeping only the pages you want from each
Most Used
Popular Tools
Word Counter
Count words, characters, sentences and paragraphs in any text
Character Counter
Count characters with and without spaces
Reading Time Calculator
Estimate how long it takes to read your content
Text Case Converter
Convert text to UPPER, lower, Title Case, camelCase, snake_case, CONSTANT_CASE and more
Lorem Ipsum Generator
Generate placeholder text by paragraph, word, sentence or list item
Text Diff Checker
Compare two texts and highlight every added, removed and rewritten line
URL Slug Generator
Turn a title into a clean URL slug, or a whole list of titles at once
Title & Meta Description Length Checker
Preview your SERP snippet and see where the title and description get cut off
JSON Formatter
Format, minify and validate JSON, with the exact line of any error
Base64 Encoder/Decoder
Encode text or files to Base64, decode Base64 and base64url back again
URL Encoder/Decoder
Encode a value or a whole URL, decode either, and read query parameters
Markdown to HTML Converter
Convert Markdown to clean HTML, with a live preview and GitHub extensions
HTML Entity Encoder/Decoder
Escape text into HTML entities, or decode entities back into characters
Regex Tester
Test a regular expression against your text, with live highlighting, capture groups and replace
JWT Decoder
Decode a JWT, read every claim in plain English and check the signature
Color Picker & Converter
Pick a color and read it back as HEX, RGB, HSL, HSV, CMYK or OKLCH
CSS Minifier
Minify CSS without rewriting your rules, or format it back to readable
UUID Generator
Generate UUIDs in any version, from random v4 to time-ordered v7
Binary & Hex Converter
Convert a number between binary, octal, decimal and hex, exact at any size
Image to Base64
Convert an image to Base64, a data URI, or a ready CSS/HTML snippet
QR Code Generator
Generate a QR code for a link, Wi-Fi, contact card or event, add your logo, and see it read back before you download
Barcode Generator
Generate an EAN, UPC, Code 128, Code 39, ITF or Codabar barcode and download it as PNG or SVG
Percentage Calculator
Percent of a number, percentage change, discounts, tax and reverse percentages
Age Calculator
Exact age in years, months and days, with a next-birthday countdown
App Icon Generator
Build the iOS and Android app icon sets a React Native or Expo project needs
Favicon Generator
Turn one logo into favicon.ico, the PNG sizes, Apple and Android icons
SVG to PNG Converter
Convert SVG files or pasted markup to PNG at any scale or exact size
Image Compressor
Compress JPG, PNG and WebP by quality or to an exact size, and check the result
Image Resizer
Resize one image or a whole batch, then download them all as a ZIP
Image Corner Rounder
Round or squircle image corners, resize and export PNG, WebP or JPG
Password Generator
Generate strong passwords and see their real entropy in bits
SHA-256 Hash Generator
Generate SHA-256 hashes of any text, one line at a time or in bulk
Length Converter
Convert between twelve length units at once, including feet and inches
Social Media Character Counter
Check your post length against ten platform limits at once, counted the way each one counts
Merge PDF
Join several PDFs into one file, drag them into the order you want, and take only the pages you need
Simple by design
How tooldura Works
Find Your Tool
Search from 41 tools or browse by category. Every tool is one click away from the homepage.
Use It Instantly
No login, no setup, no waiting. Just open the tool and start using it right away.
Get Your Result
Copy or download your result instantly. Clean, ready-to-use output every time.
Got questions?
Frequently Asked Questions
Yes. Every tool on tooldura is free, with no premium tier, no usage limits, and no feature held back for paying users. You do not need an account to use any of them.