Education Calculators
Academic performance measurements differ dramatically by country and institution. Our education calculators handle the conversions so you don't have to — whether you're applying internationally, tracking semester performance, or comparing grading systems.
US GPA (4.0 scale) calculation
UK degree classification (First, 2:1, 2:2)
Percentage to GPA conversion
Weighted GPA for honors/AP courses
Hash Generator
Generate cryptographic hashes from text using MD5, SHA-1, SHA-256, SHA-512 and more. Learn how hashing works for security and data integrity.
Open calculator →JSON Formatter & Validator
Format, validate, and minify JSON data online. Handles large payloads efficiently with syntax highlighting, error detection, and tree view — all processed locally in your browser.
Open calculator →JavaScript Formatter & Validator
Format, validate, and minify JavaScript code online. Detects syntax errors instantly with clear error messages — all processed locally in your browser for speed and privacy.
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