🔐 Free Online Tools

Security & Finance Tools
That Protect Your Privacy

Browser-based tools that run entirely on your device. No uploads, no registration, no data stored — ever.

No file uploads No data stored 100% free forever Works on any device
6
Powerful free tools
50+
File signatures detected
100%
Private — runs in browser
0
Server uploads ever
Our Tools
File Type
Detector
IP Security
Checker
Base64 Encoder
/ Decoder
File Integrity
Verifier
India Salary
Calculator
 NEW
EMI
Calculator
From the Blog
💼 Salary
6 LPA In-Hand Salary 2025-26: Exact ₹44,038/month Take-Home
First job at 6 LPA? Zero income tax guaranteed. Full breakdown with PF, PT and both regimes.
Apr 2026 · 10 minRead →
 💼 Salary
8 LPA In-Hand Salary 2025-26: ₹58,784/month Take-Home
Got an 8 LPA offer? Zero tax via 87A rebate. See PF, PT, gratuity — both regimes compared.
Apr 2026 · 8 minRead →
 💼 Salary
10 LPA In-Hand Salary 2025-26: ₹71,129/month Take-Home
10 LPA offer? Zero tax still applies. New vs Old regime — exactly what lands in your bank.
Apr 2026 · 5 minRead →
 💼 Salary
12 LPA In-Hand Salary 2025-26: ₹85,395/month Take-Home
12 LPA — tax kicks in. New Regime vs Old Regime decision with real numbers and deduction guide.
Apr 2026 · 8 minRead →
 💼 Salary
15 LPA In-Hand Salary 2025-26: ₹1,05,825/month Take-Home
15 LPA offer? Full tax breakdown, HRA, NPS & 80C impact. Which regime saves more?
Apr 2026 · 7 minRead →
 💼 Salary
20 LPA In-Hand Salary 2025-26: Old Regime Wins With NPS+HRA
At 20 LPA, Old Regime beats New Regime by ₹8,800/month with proper deductions. Full proof inside.
Apr 2026 · 9 minRead →
View all articles →
Why SecureToolsHub?
No Uploads Ever
All tools run in your browser. Your files and data never leave your device.
Instant Results
No waiting, no signup needed. Results appear the moment you interact.
100% Free
Every tool is completely free. No subscription, no limits, no ads.
Mobile Friendly
Works perfectly on phones, tablets and desktops. Tested on Android & iOS.
Privacy First
No data stored. No tracking beyond analytics. No server processing.
No Installation
Use instantly in any browser. Nothing to download or install.
About This Site

What is SecureToolsHub?

A growing collection of free browser-based security and finance tools. Every tool runs on your device — files and data are never sent to any server.

Our Tools

  • File Type Detector — detect real file formats by magic bytes
  • IP Security Checker — check VPN, proxy, TOR & threat score
  • Base64 Encoder/Decoder — encode and decode instantly
  • File Integrity Verifier — verify SHA-256, SHA-1, MD5
  • India Salary Calculator — New vs Old regime, FY 2025-26
  • EMI Calculator — home loan, car loan, step-up EMI & more

Why Browser-Based?

Your sensitive files never leave your device. No server processing, no storage risk, no data exposure. This is the safest way to use security tools online.

Who Uses This?

Developers, security researchers, IT professionals, salaried employees and everyday users who need quick tools without uploading sensitive data.

Are these tools really free?

Yes, completely and permanently free. No subscription, no account, no hidden charges.

Do you store my files?

No. All processing happens in your browser. Nothing is sent to our servers.

Do the tools work on mobile?

Yes. All tools are fully responsive and tested on Android and iOS.

How often are tools updated?

We continuously improve existing tools and add new ones regularly.

Is the India Salary Calculator updated for FY 2025-26?

Yes. It uses the latest FY 2025-26 tax slabs for both New and Old regimes, including the updated 87A rebate threshold (₹12L in New Regime), correct surcharge tiers and the ₹75,000 standard deduction.