Free tools A–Z — find any calculator
151 tools: India income tax and GST, US 401(k) and mortgage, JWT and UUID, JSON/CSV/Excel converters, hreflang checker, robots.txt, JSON-LD, word count and keyword density. Search or jump by letter. Every page runs in your browser.
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A
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C
- Camel Case Converter
- Canonical URL Builder
- Cap Rate Calculator for Rental Property (US)
- Free Character Counter
- Child and Dependent Care Credit Calculator 2026
- Child Tax Credit Calculator 2026
- Chmod Calculator
- Free Color Contrast Checker
- Credit Card vs 401k Catch-Up Calculator
- Cron Generator — Unix, Quartz, K8s
- Crontab Generator — Unix Presets
- CSS Clamp Calculator
- CSS Gradient Generator
- CSS Specificity Calculator
- Free CSV Diff
- CSV to JSON Converter
- CSV to Markdown Converter
- CTC to Take-Home Calculator India
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- HELOC Payment Calculator
- HELOC vs Cash-Out Refinance Calculator (US)
- Hex RGB Converter
- HMAC SHA256 Generator
- Home Loan Interest 24(b) Calculator
- Home Sale Capital Gains Exclusion Calculator
- Homeowners Insurance Premium Estimator (US)
- HRA Calculator Bangalore FY 2026-27
- HRA Calculator FY 2026-27 (India)
- HRA Exemption Calculator for Metro Cities
- Free Hreflang Checker & Validator
- HSA Contribution Calculator 2026
- HTML Entity Encoder
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R
- Reading Time Calculator
- Redirect Map Checker
- Refinance vs Sell Rental Calculator
- Regex Tester
- Remove Duplicate Lines
- Remove GST Calculator (India GST 2.0)
- Rent vs Buy Calculator (US)
- Rent vs Buy Calculator India
- Rental Property Cash Flow Calculator (US)
- Retirement Corpus Calculator
- Reverse GST Calculator (India GST 2.0)
- Robots.txt Block GPTBot
- Robots.txt Checker — Test Any Path
- Robots.txt Generator
- Roth Conversion Bracket Fill Calculator 2026
- Roth IRA vs Traditional IRA Calculator 2026
S
- Schema Markup Checker
- Schema Markup Validator — JSON-LD
- Self-Employment Tax Calculator 2026
- SHA256 Hash Generator
- Sitemap Lastmod Helper
- Sitemap XML Generator
- Slugify URL Slug Generator
- Snake Case Converter
- SPF Record Checker
- Stamp Duty Calculator Maharashtra
- Standard vs Itemized Deduction Calculator 2026
- Step-up SIP Calculator
- Strip HTML Tags
- Student Loan Extra Payment Calculator
- Student Loan IDR Calculator 2026
- Student Loan Refinance Calculator (US)
- Sukanya Samriddhi Calculator
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Frequently asked questions
- Why is this list on its own page?
- The homepage highlights a few tools so it is not a 75-link dump. This A–Z is the crawlable index.
- Can I link to a search?
- Yes. /tools?q=jwt filters the search box. The letter list below still shows every live tool.
- Is anything uploaded?
- No. Opening this index does not send tool input anywhere.