ToolCookie Tools
Useful tools for real tasks — clear, focused and designed to keep supported inputs in your browser.
Featured tools
A quick starting point for popular tasks.
Recently used
Stored only in this browser.
All tools
Browse the complete private-first collection.
Text
Text Trimmer
Clean spaces, whitespace and line breaks, then copy or download the result.
Text
Case Converter
Convert text between proper, lower and upper case.
Text
Markdown ↔ HTML Converter
Convert and preview Markdown and HTML in your browser.
Image
Image to Text Converter
Extract English text from supported images with browser-based OCR.
Image
Dummy Image Generator
Create customised placeholder images for projects and prototypes.
Image
Colour Converter
Convert common colour formats and check contrast.
Image
Image Converter Pro
Convert and resize JPG, PNG and WebP images locally.
Image
Image Metadata Cleaner
Create re-encoded image copies to reduce common embedded metadata.
Developer
Bulk Link Checker
Extract and structurally review URLs without visiting their destinations.
Developer
Meta Tag Generator
Generate standard meta and Open Graph tags with previews.
Developer
Regex Builder & Tester
Build and test JavaScript regular expressions with presets and export.
Developer
JSON Formatter & Validator
Validate, format, minify, sort, copy and download JSON locally.
Security
Client-Side File Encryptor
Encrypt compatible files locally using AES-256-GCM and PBKDF2.
Security
Advanced Password Generator
Generate configurable passwords with browser cryptography.
Security
Email Header Analyzer
Parse raw headers and review structural and authentication indicators.
Security
URL & Link Structure Checker
Inspect observable URL patterns without claiming a safety verdict.
Utility
QR Code Generator
Create downloadable QR codes from text or URLs in your browser.
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Our Vision
Building the future of online productivity tools
Innovation First
Improving practical tools to meet real-world needs.
Global Accessibility
Supporting modern browsers and common screen sizes.
Quality Focus
Crafting every tool with attention to detail and user experience.
User-Focused
Designing clear controls around familiar workflows.
Why Choose Our Tools?
Built with privacy, performance and user experience in mind
Privacy-Conscious
Most tool inputs are processed locally; relevant external dependencies are identified where applicable.
Practical Performance
Focused tools designed for efficient everyday digital tasks.
Currently Free
Currently free to use without a subscription or mandatory ToolCookie account.
Mobile Friendly
Designed for modern browsers and common desktop, tablet and mobile screen sizes.
No Registration
No ToolCookie account is currently required for the listed tools.
Clear Dependencies
External libraries or website resources are identified where they are relevant.