Developer tools
Format, minify and inspect HTML, CSS, JavaScript and JSON.
15 tools
01Categories
Explore Free Online Tools by Category
Image tools, PDF tools, developer tools and more, grouped by the kind of task you're working on.
Free online tools
Useful tools. Instantly.
Everything you need to get things done online.
Discover free online tools for images, PDFs, text, design, calculations, AI, and development. Fast, simple, and ready when you are.
Explore all tools- Free to use
- No installation
- Simple and fast
Image tools
Compress, convert, crop and find images for the web.
11 toolsPDF tools
Merge, split, organise and convert PDFs right in your browser.
10 toolsAI tools
Get sites, data and prompts ready for AI: llms.txt, crawler access, tokens, schemas and MCP.
8 toolsCalculators & converters
Convert between image, document, data and colour formats in a click.
7 toolsDesign & color tools
Colour conversion, favicons and visual assets for your brand.
3 toolsText & writing tools
Count, check and shape your words and copy.
3 tools- All categoriesIncluding video and everyday utilities.9 categories
02Popular
The tools people reach for most
Start with the favourites, each one free and ready the moment the page loads.
- PopularFree
Image Compressor
Compress PNG, JPG and SVG files in lossless or lossy mode so your pages load faster.
PNG · JPG · SVG
Open toolIn your browser - PopularFree
Meta Tags Generator
Preview and generate Open Graph, Twitter and SEO meta tags for how your site appears when shared.
Open Graph · Twitter · SEO
Open toolIn your browser - PopularFree
llms.txt Generator
Write and validate an llms.txt file that points AI tools to your site's most useful pages.
llms.txt · Markdown
Open toolIn your browser
03All tools
Every tool, one place
Filter by name, task or category — or press / to search from anywhere.
Showing all 41 tools
- PopularNew
llms.txt Generator
Write and validate an llms.txt file that points AI tools to your site's most useful pages.
- New
AI Crawler Checker
See which AI crawlers (GPTBot, ClaudeBot, PerplexityBot and more) your robots.txt allows or blocks.
- New
JSON-LD Generator
Build schema.org structured data for articles, products, FAQs, events and more, with built-in checks.
- New
LLM Token Counter
Count tokens and estimate cost for GPT, Claude, Gemini and Llama prompts, with exact counts where tokenizers are public.
- New
MCP Config Generator
Generate MCP server config for Claude, Cursor, VS Code, Windsurf and Zed from one form.
- New
JSON Schema Generator
Generate a JSON Schema from example JSON, then validate data against it.
- New
AI Prompt Builder
Structure prompts with a role, task, context, constraints, output format and examples, with reusable variables.
- New
AI Readiness Checker
Score how well a page can be read, understood and cited by AI search and assistants.
- Popular
Image Compressor
Compress PNG, JPG and SVG files in lossless or lossy mode so your pages load faster.
- Popular
Meta Tags Generator
Preview and generate Open Graph, Twitter and SEO meta tags for how your site appears when shared.
URL to Screenshot
Capture high-quality screenshots of any website from its URL, at custom sizes for responsive views.
JSON Beautifier
Format JSON with clean indentation and line breaks so it's easy to read.
JSON Minifier
Strip whitespace, indentation and line breaks from JSON to reduce its size.
JSON Tree Viewer
Explore JSON as a collapsible tree to navigate large and nested data.
JSON to XML
Convert JSON data into well-formed XML.
HTML Beautifier
Re-indent and space out HTML markup to make it readable again.
CSS Beautifier
Reformat CSS with consistent indentation and spacing.
CSS Minifier
Remove spaces, line breaks and comments from CSS to cut file size.
JS Beautifier
Reformat JavaScript with proper indentation to improve readability.
HEX to RGB Converter
Translate hexadecimal colour codes into RGB values and back.
Favicon Generator
Create favicons in every size you need from a PNG, JPG, SVG or ICO file.
Word Counter
Count words and characters as you type for essays, posts and copy.
- New
QR Code Generator
Turn links and text into a QR code you can download and print.
- New
Image Converter
Convert images between common formats in a few clicks.
- New
Image Cropper
Crop images to an exact size or aspect ratio.
- New
Image Search
Search for free images to use in your projects.
- New
HEIC to JPG
Convert iPhone HEIC photos to JPG, PNG or WebP in bulk, with location data removed.
- New
Resize Image
Resize images to exact pixels, a percentage or a longest side, in bulk, with sharp results.
- New
Compress Image to KB
Shrink images under an exact size like 20 KB, 50 KB or 200 KB for forms and uploads.
- New
Remove Photo Metadata
See and strip hidden EXIF, GPS location and camera data from photos without re-compressing them.
- New
Merge PDF
Combine PDFs into one file, reorder them and pick exactly which pages to keep from each.
- New
Split PDF
Split a PDF into single pages, page ranges or equal parts, or extract the pages you select.
- New
Organize PDF
Reorder, rotate and delete PDF pages visually, then save a clean new file.
- New
JPG to PDF
Turn JPG, PNG and WebP images into one PDF with page size, orientation and margins.
- New
PDF to JPG
Convert PDF pages to high-resolution JPG or PNG images, all pages or just the ones you pick.
- New
Compress Video
Shrink videos to a target size for WhatsApp, Discord or email, and see the result size before you start.
- New
Compress PDF
Shrink PDFs by recompressing the images inside them, while text and vector graphics stay sharp.
- New
PDF to Word
Turn a PDF's text into an editable Word document, with headings, paragraphs and page breaks.
- New
Sign PDF
Draw, type or upload your signature and place it anywhere on a PDF, plus dates and initials.
- New
OCR PDF
Make scanned PDFs searchable and copyable by recognising the text on every page.
- New
Protect PDF
Add a password with AES-256 encryption and control printing and copying, or remove a password you know.
No tools match those filters.
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04Why Instant.tools
One product, many tools, no friction
Every utility follows the same rules, so the next one you try already feels familiar.
Fast
Tools open instantly and most do their work right in your browser — no queues, no waiting on uploads.
Simple
One clean interface across every tool. Paste, drop or type, then get your result. No accounts, no clutter.
Privacy-conscious
Every tool says where your data is processed: on your device, or on our servers when it has to be.
Accessible
Keyboard-first navigation, clear focus states and readable contrast, designed to meet WCAG 2.2 AA.
05Workflow collections
Tools that work better together
Short, ordered sets for jobs that take more than one step.
- 4 tools
Website Launch
The finishing touches before you ship: share previews, icons and fast images.
- 3 tools
Image Optimization
Get any image web-ready: right size, right format, smallest file.
- 5 tools
Developer Essentials
Everyday formatters and minifiers for the code you paste most.
06Guides & resources
Learn the task, not just the tool
Tutorials, tips and how-to guides for getting more out of each utility.
How to compress images without visible quality loss
When to choose lossless or lossy, and which format suits photos, UI and icons.
Open Image CompressorMeta tags that earn the click
The Open Graph and Twitter tags that matter, with sizes for share images.
Open Meta Tags GeneratorRead messy JSON in seconds
Beautify, then switch to the tree view to find the key you're after.
Open JSON Tree Viewer
Missing something?
Tell us the tool you wish existed.
Instant.tools grows from real requests. Describe the task you're stuck on and we'll consider building it next.