All the tools you need, in one place.
Fast, privacy-focused, 100% client-side web utilities for developers and digital professionals. Zero latency, zero logs, zero cookie analytics.
Developer Utilities
Data parsing, formats & tokensJSON Suite
Format, validate, parse XML, or diff-compare complex JSON objects.
JSON to CSV
Flatten complex, nested JSON arrays or objects into standard tabular CSV formats instantly.
Web Tokens
Decode JWT payloads, encode/decode Base64 and URLs instantly.
Crypto / Hashing
Generate MD5, SHA-256, and secure Bcrypt hashes directly in-browser.
Swagger Previewer
Render YAML to interactive API docs in real time.
Text & String Tools
Diff checkers & syntax testingMath & Finance
Tax calculators & financial toolsIncome Tax Calculator
Compare Old vs New tax regimes with detailed breakdowns.
Take Home Salary
Calculate exact monthly in-hand salary after all deductions.
EPF & Retirement
Project PF corpus and split employer contributions.
HRA Exemption
Calculate HRA tax exemption based on rent and city.
Gratuity Calculator
Calculate 15/26 gratuity payout based on years of service.
Salary Hike
See how an increment impacts your take-home and tax.
Percentage Calculator
Quickly solve multi-variation percentage formulas on the fly.
Date Calculator
Calculate exact duration between two dates or add/subtract days.
Epoch Converter
Convert Unix timestamps to human-readable calendar dates.
Unit Converter
Convert data bytes, lengths, weights, and file capacities.
Document & File Utilities
File conversions & formatting toolsRelated Utilities
Did You Know?
ApexToolHub executes all utility conversions, hashing computations, and file parsings locally in your browser workspace. No document bytes ever traverse the network.
Newsletter & Updates
Be notified when we publish new client-side security tools and code formatting features.