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Everything you need, one click away. Calculators, developer utilities and PDF tools. Free, fast and private.
Salary Calculator
In-hand salary under the old or new tax regime, from gross pay or CTC.
General
Old vs New Tax Regime
Compare income tax under both regimes and see which saves you more.
General
HRA Calculator
Work out your tax-free House Rent Allowance from rent, salary and city.
General
Gratuity Calculator
Calculate gratuity from last drawn salary and years of service, with the tax-free limit.
General
PPF Calculator
Calculate Public Provident Fund returns and maturity amount.
General
EPF Calculator
Calculate Employee Provident Fund with detailed growth chart.
General
NPS Calculator
Plan retirement with National Pension System calculator.
General
EMI Calculator
Calculate monthly EMI for home and car loans with tax benefits.
General
Mutual Fund Calculator
Calculate SIP and SWP returns for mutual fund investments.
General
Currency Converter
Convert global currencies with historical and comparison charts.
General
Compress PDF
Reduce the size of PDF files.
Unlock PDF
Unlock password-protected PDF files.
Edit PDF
Edit, annotate and sign PDF documents.
Merge PDF
Combine multiple PDF files into one.
Split PDF
Split a PDF file into multiple files.
eSign PDF
Sign PDF documents electronically.
Protect PDF
Add password protection to your PDFs.
PDF Reader
View and read PDF files.
JSON Formatter
Format and validate JSON data.
Developer
JWT Validator
Validate and decode JWT tokens.
Developer
cURL Validator
Parse and validate cURL commands.
Developer
Text Diff Checker
Compare text & files side-by-side.
Developer
Regex Tester
Test and debug your regular expressions.
Developer
Base64 Encoder/Decoder
Encode and decode Base64 strings.
Developer
URL Encoder/Decoder
Encode and decode URLs.
Developer
Brotli ⇄ JSON
Compress JSON or decompress Redis cache values.
Developer
PasteBin
Share code snippets & files via a short link. No login required.
Developer
Frequently asked questions
Are the tools on The ToolBox free?
Yes. Every tool is free to use and needs no account or sign-up.
Is my data private?
The calculators, developer tools, PDF editor and PDF reader run in your browser and do not send your input to our servers. The PDF merge, split, compress, protect and unlock tools upload your file to our server for processing, and PasteBin stores what you share.
Do I need to install anything?
No. Every tool works in a modern web browser on desktop and mobile.