Collections
Tools grouped by the job
A collection is the set of tools you actually open in sequence to finish something — validating a payload, launching a page, working out what a loan costs. Most of them cut across categories on purpose.
Every collection
Developer Essentials
34 tools
The formatters, encoders and validators you reach for every day.
- JSON Formatter
- JSON Viewer
- JSON Validator
- Regex Tester
Financial Calculators
9 tools
Loans, savings, tax and investment maths with the workings shown.
- EMI Calculator
- Home Loan EMI Calculator
- Loan Eligibility Calculator
- SIP Calculator
Image Toolkit
7 tools
Compress images, pick colours and generate codes — no upload.
- Image Compressor
- Dummy Image Generator
- Color Picker
- Color Converter
SEO Toolkit
6 tools
Everything needed to ship a page search engines understand.
- Meta Tag Generator
- Open Graph Generator
- Canonical URL Generator
- Sitemap Generator
Text Utilities
4 tools
Count, compare and convert text in a single click.
- Word Counter
- Markdown to HTML Converter
- Diff Checker
- Slug Generator
Business Tools
7 tools
Tax, percentages, units, time and the everyday commercial maths.
- Percentage Calculator
- GST Calculator
- Unit Converter
- Age Calculator
Why these cut across categories
Shipping a page needs a slug, meta tags, an Open Graph card, a canonical, robots.txt and a sitemap — six tools that all live under SEO. Debugging an API response needs a JSON validator, a viewer, a JWT decoder and a timestamp converter, which live under three different categories.
A collection follows the second shape: the work, not the taxonomy.
Every tool listed is one you can open
Collections are curated ahead of the build and name tools that are still planned. Only the ones that have shipped are shown, so a collection page never lists something you cannot use today.