Profit Calculator
Enter your buy price, sell price, and investment. Get profit, ROI, exit value, and fees all at once.
100% Client-Side — Your data never leaves your browser
The crypto tools you actually need.
Free calculators for profit, tax, gas fees, DCA, and salary conversion. We collect zero data — no accounts, no cookies, no tracking. Everything runs locally in your browser.
Market Pulse
Live
Bitcoin
BTC
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Ethereum
ETH
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Solana
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Fear & Greed
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Finance & On-Chain Calculators
All calculations run in your browser instantly. No login, no data stored, no fees.
Calculate by Token:
🟠 Bitcoin (BTC)
🔷 Ethereum (ETH)
🟣 Solana (SOL)
🟢 Ripple (XRP)
🔵 Cardano (ADA)
🐕 Dogecoin (DOGE)
🐸 Pepe (PEPE)
Tax Calculator
Enter your trade, holding period, and tax rate. See exactly how much tax you owe instantly.
Gas Fee Estimator
Current Ethereum gas price, cheapest send window, and a clear action suggestion.
DCA Calculator
Simulate a dollar-cost averaging strategy. See your average price, total coins, and current portfolio value.
Salary Calculator
Convert any salary into crypto. See daily, weekly, monthly, and yearly equivalents for any coin.
Satoshi/Gwei Converter
Convert between BTC, Satoshi, mBTC, ETH, Gwei, and Wei units in real-time instantly.
Crypto Price Converter
Live cryptocurrency price converter using real-time aggregate coin index values.
Liquidation Calculator
Calculate your crypto futures long/short liquidation price threshold and safety distance.
Halving Countdown
Live countdown clock, block count progress metrics, and estimated date of the next Bitcoin Halving.
Interest Calculator
Calculate APY/APR compound returns and staking yields for cryptocurrency assets over time.
Risk Calculator
Calculate exact trade position sizes based on account risk tolerance and stop loss levels.
Break-Even Calculator
Calculate average cost basis of multiple buy orders and target price to break even on a trade.
Fear & Greed Index
Check the live Bitcoin market sentiment index meter and historical emotional index statistics.
Portfolio Tracker
Monitor your coin holdings value in real-time. Saved privately in your browser's storage.
Security & Cryptography Tools
Perform hashes, encryption, key generation, and 2FA tokens locally in your browser.
Instant Crypto Swap
Swap 350+ coins instantly. Wallet-to-wallet transactions with self-custody, no accounts, and no KYC.
Hash Calculator
Generate SHA-256, SHA-512, MD5, and SHA-1 hashes of text string locally and instantly.
HMAC Calculator
Calculate Hash-based Message Authentication Codes using keys and SHA hash algorithms.
AES Text Encryptor
Encrypt or decrypt text messages using standard symmetric AES algorithm with a password.
RSA Key Generator
Generate secure public and private key pairs (1024, 2048, or 4096 bits) inside your browser.
Diffie-Hellman
Interactive simulator illustrating how secure key exchange works without sharing the secret.
TOTP Calculator
Generate standard 6-digit 2FA Google Authenticator tokens locally using a secret key.
Base64 Tool
Encode plain text or uploaded files to Base64, and decode Base64 strings back to text locally.
Password Generator
Generate secure random passwords using cryptographically strong browser-side entropy APIs.
QR Code Generator
Generate secure QR codes for URLs, text, and cryptocurrency address URI schemas locally.
JSON Formatter
Validate, beautify, format with spacing, and minify raw JSON string payloads locally.
Timestamp Converter
Convert Unix Epoch timestamp integers to human-readable dates and vice-versa in browser.
UUID Generator
Generate secure random Version 4 UUIDs (GUIDs) using client-side cryptographic APIs.
JWT Decoder
Decode and inspect JSON Web Token payloads and header claims securely in-browser.
Address Validator
Validate Ethereum wallet address formats and EIP-55 checksum case sensitivity locally.
Base Converter
Convert numbers dynamically between Decimal, Hexadecimal, Binary, and Octal formats locally.
Mnemonic Generator
Generate secure, random BIP39 12/24 word mnemonic seed backup phrases offline in browser.
Built for serious crypto users
No clutter, no upsells on every click, no forced accounts. Just tools that work.
No account needed
Every tool works in your browser without registration. Your data never leaves your device.
Instant results
All calculations run client-side the moment you type. No loading spinner, no submit button lag.
Real market data
Gas prices and live coin rates come from Etherscan and CoinGecko APIs, refreshed automatically.
How it works
Every tool follows the same three-step pattern so there's no learning curve.
1
Pick a tool
Choose from profit, tax, gas, DCA, or salary. Each opens directly with no friction.
2
Enter your numbers
Type your prices or amounts. Results appear instantly as you type — no calculate button required.
3
Read your results
Profit, ROI, exit value, tax owed, or gas estimate — displayed cleanly with no noise around them.