CRC32 Checksum Generator Quickly compute CRC32 checksums for any text or file. CRC32 (Cyclic Redundancy Check 32-bit) is a widely used error-detection algorithm that produces an 8-character hexadecimal hash. This tool processes your input instantly in the browser with no server uploads required. How to Use Enter your text in the input field or upload ...
Try the Tool »RIPEMD-160 Hash Generator Generate RIPEMD-160 cryptographic hashes instantly in your browser. RIPEMD-160 (RACE Integrity Primitives Evaluation Message Digest) is a 160-bit hash function commonly used in Bitcoin address generation, PGP fingerprints, and legacy authentication systems. This tool computes hashes client-side for maximum privacy — your data never leaves your browser. How to Use Enter or ...
Try the Tool »SHA-3 Hash Generator Generate SHA-3 (Keccak) hashes instantly with this free online tool. SHA-3 is the latest member of the Secure Hash Algorithm family, standardized by NIST in 2015. Unlike SHA-2, SHA-3 is built on the Keccak sponge construction, providing a completely different internal structure for added security diversity. Use this tool to compute SHA3-224, ...
Try the Tool »Bitcoin Address Validator Instantly verify whether a Bitcoin wallet address is valid. This tool checks the format, encoding, and checksum of any Bitcoin address, supporting all major address types: Legacy (P2PKH), Script (P2SH), Native SegWit (Bech32), and Taproot (Bech32m). Paste an address and get immediate validation results with detailed type and network information. How to ...
Try the Tool »Routing Number Validator Instantly validate US bank ABA routing numbers using the official checksum algorithm. Enter any 9-digit routing number to check whether it is valid, identify the Federal Reserve district, and see a step-by-step breakdown of the checksum calculation. How to Use 1. Enter or paste a 9-digit ABA routing number in the input ...
Try the Tool »IMEI Number Generator Generate valid IMEI (International Mobile Equipment Identity) numbers for testing and development purposes. Each generated IMEI uses realistic Type Allocation Code (TAC) prefixes from known manufacturers and a valid Luhn check digit, making them structurally correct for software testing, QA validation, and educational use. How to Use Select a manufacturer from the ...
Try the Tool »WebAuthn Credential ID Generator Generate cryptographically secure WebAuthn credential IDs in Base64url format, or decode existing credential IDs to inspect their raw bytes. Set the byte length (16–64 bytes), generate multiple IDs in a batch, and decode any Base64url credential ID to see its byte count and hex representation. How to Use Set the byte ...
Try the Tool »X.509 Certificate Parser Parse and inspect X.509 certificates and CSRs from PEM format. Instantly see the subject, issuer, validity dates, serial number, public key details, signature algorithm, SAN (Subject Alternative Names), key usage extensions, and full field breakdown — without uploading the certificate to any server. How to Use Paste your PEM-encoded certificate (beginning with ...
Try the Tool »BIP39 Mnemonic Converter Generate new BIP39 mnemonic seed phrases or convert an existing phrase to its corresponding seed, extended private key (xprv), and derivation path. Supports 12, 15, 18, 21, and 24-word phrases with an optional passphrase (BIP39 passphrase / 25th word). All computation is fully client-side. How to Use Choose Generate to create a ...
Try the Tool »Random Bitcoin Address Generator Generate random Bitcoin wallet addresses for testing and development. Create properly formatted addresses in all four major Bitcoin address formats — Legacy (P2PKH), Script Hash (P2SH), SegWit (Bech32), and Taproot (Bech32m). Ideal for testing payment processing integrations, populating test databases, and validating address format checks. How to Use Set the number ...
Try the Tool »Open Graph Checker Inspect and preview the Open Graph meta tags on any URL to see exactly how your page will appear when shared on social media. This tool fetches the page, extracts all OG and Twitter Card meta tags, and shows you a visual preview of the social share card — plus flags any ...
Try the Tool »Redirect Checker Trace the full redirect chain for any URL and see every hop along the way. This tool follows redirects from start to finish, showing the HTTP status code, URL, and response time at each step. Essential for debugging redirect chains, verifying SEO migrations, and finding redirect loops before they cause problems. How to ...
Try the Tool »SQL Escape Escape special characters in strings for safe use in SQL queries. Supports multiple SQL dialects including MySQL, PostgreSQL, SQL Server, and SQLite. Prevents SQL injection by properly escaping quotes, backslashes, and other dangerous characters before they reach your database. How to Use Paste your raw string into the input area, select your SQL ...
Try the Tool »Twitter / X Character Counter Write and count your tweet with Twitter’s exact character counting rules. This tool applies the same algorithm Twitter/X uses — URLs always count as 23 characters regardless of length, and emoji have weighted counts. Real-time feedback shows remaining characters with color-coded warnings, and thread mode splits long content into multiple ...
Try the Tool »URL Canonicalizer & Normalizer Normalize URLs to their canonical form following RFC 3986 standards. This tool applies configurable normalization steps — lowercase scheme and host, remove default ports, sort query parameters, resolve dot segments, and more — with side-by-side comparison and diff highlighting to show exactly what changed. How to Use Enter one or more ...
Try the Tool »PGP Key Pair Generator Generate PGP public/private key pairs directly in your browser for email encryption, file signing, and identity verification. Choose between RSA and ECC key types, set an optional passphrase, and configure expiration. Both the public and private keys are output in standard ASCII-armored PEM format ready to import into any PGP-compatible application. ...
Try the Tool »AES Encryption Key Generator Generate cryptographically secure AES encryption keys in 128, 192, or 256-bit sizes, in either hexadecimal or Base64 format. Produce up to 10 keys at once for AES-CBC, AES-GCM, AES-CTR, or any AES mode. All keys are generated using the browser’s crypto.getRandomValues() API for true randomness. How to Use Select your AES ...
Try the Tool »ChaCha20 Key Generator Generate cryptographically secure ChaCha20 keys for use in stream cipher encryption. Produce 256-bit keys in hex or Base64 format, with optional initial counter values, in bulk batches of up to 10 keys at once. All generation uses the browser’s built-in crypto.getRandomValues() API for true randomness. How to Use Select your preferred output ...
Try the Tool »API Signature Generator Generate HMAC-based API request signatures for webhook verification, API authentication, and request signing. Supports HMAC-SHA1, HMAC-SHA256, and HMAC-SHA512 with secret keys in plain text or hexadecimal format, outputting both hex and Base64 signatures for immediate use in HTTP headers or query parameters. How to Use Enter the message or data to sign ...
Try the Tool »TOTP / HOTP Secret Generator Generate cryptographically secure TOTP and HOTP secrets for two-factor authentication apps like Google Authenticator and Authy. The generator creates Base32-encoded secrets, produces a scannable QR code via the otpauth:// URI standard, and shows a live TOTP preview so you can verify the secret works before deploying it. How to Use ...
Try the Tool »Add IO tools to your favorite browser for instant access and faster searching
Scoreboard is a fun way to keep track of your games, all data is stored in your browser. More features are coming soon!
Update: Our latest tool was added on May 30, 2026
Help us continue providing valuable free tools
