Everything runs in your browser — no data is uploaded.
175 tools
Generate .gitignore files for your projects by selecting templates
Generate Adler-32 checksums for text input or file upload. Calculate fast checksums for data integrity verification and error detection
Decrypt AES JSON envelopes from InBrowser.App with the original password or raw hexadecimal key.
Encrypt text or files in your browser with AES-GCM, AES-CBC, or AES-CTR using a password-derived key or a raw hexadecimal key.
Generate encoded Argon2 password hashes in the browser with configurable algorithm, memory, iterations, parallelism, salt, and optional secret
Convert text to ASCII art using various figlet fonts. Type a word or phrase, pick a font, and copy the result.
Generate barcodes (CODE128, EAN, UPC, etc.) and download as PNG, SVG, JPEG, or WebP.
Decode Base16 (Hex) text or files into raw bytes for inspection, testing, and tooling.
Encode text or files to Base16 (Hex) for data transport, debugging, and web development.
Decode Base32 text or files back to original data for transport, storage, and integration.
Encode text or files to Base32 for data transport, storage, and web development.
Decode Base58 text or files back to original data for transport, storage, and integration.
Encode text or files to Base58 for data transport, storage, and web development.
Encode plain text to Base64 and decode Base64 back to Unicode text directly in your browser.
Decode Base85 text or files back to original data for transport, storage, and integration.
Encode text or files to Base85 for data transport, storage, and web development.
Decode HTTP Basic Authorization header to extract username and password from Base64. Useful for debugging and API testing
Generate HTTP Basic Authorization header by encoding username and password as Base64. Quickly create credentials for API testing and development
Generate bcrypt password hashes locally with configurable cost, fresh salts, and copy-ready output for authentication systems.
Verify a plain text password against a bcrypt hash locally in your browser. Useful for debugging authentication flows and checking password migrations
Validate BIC/SWIFT codes and parse bank, country, and branch details.
Generate, validate, and convert BIP39 mnemonic phrases in your browser.
Generate BLAKE2b hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate BLAKE2s hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate BLAKE3 hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Count business days between dates, and add or subtract business days with custom weekends and holidays.
Use your device camera locally to take photos, record short videos, and download the result.
Convert text between different naming conventions: camelCase, PascalCase, snake_case, kebab-case, and more.
Calculate Unix file permissions between numeric (755) and symbolic (rwxr-xr-x) notation
Parse CIDR notation to inspect IPv4 or IPv6 network ranges, masks, and integer boundaries directly in the browser.
Merge IPv4 and IPv6 CIDR blocks, subtract excluded networks, and copy the minimal resulting CIDR list.
Generate CityHash64 hashes for text input or file uploads, with an optional seed for performance-oriented checksums and cache keys.
Generate syntax-highlighted code screenshots and export them as SVG, PNG, JPEG, WebP, or HTML.
Check WCAG contrast ratios for foreground and background colors, including AA/AAA for normal and large text.
Convert colors between HEX, RGB, HSL, HSV, HWB, LAB, LCH, CMYK and CSS keywords. Real-time bidirectional conversion with alpha channel support.
Pick colors from your screen or images. Sample pixels and copy HEX, RGB, HSL, HSV, and CMYK values instantly.
Parse Cookie and Set-Cookie headers into structured JSON for inspection.
Generate CRC checksums for text input or file upload. Compare common CRC-8, CRC-16, CRC-24, CRC-32, and CRC-64 variants for data integrity checks
Validate credit card numbers using Luhn algorithm and identify card brand
Build five-field cron expressions with visual controls, presets, and upcoming run previews.
Parse, validate, and explain cron schedules with field details and upcoming run times.
Create multi-layer CSS box-shadow values with live preview, inset toggles, and precise controls.
Create layered linear, radial, and conic gradients with draggable color stops, blend modes, and export-ready CSS.
Convert CSV to JSON. Paste CSV or import a file; adjust options (headers, delimiter, trim, etc.), preview, copy, and download.
Generate secure, collision-resistant CUID2 IDs in your browser with adjustable length and batch count.
Convert cURL commands into code for many languages and HTTP clients.
Get the current network time and compare it with your local system time. View accurate network time and detect any time differences.
Decode Data URI strings into files, inspect MIME type and encoding, and download the result offline.
Inspect browser, display, hardware, network, storage, and capability details from your current device without uploading anything.
Query A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, SRV, HTTPS, and SVCB DNS records through DNS over HTTPS resolvers.
Convert docker run commands into a docker-compose.yml file.
Add or subtract ISO 8601 durations from a base time in any time zone, with millisecond precision.
Validate email addresses with syntax, length, and domain checks.
Validate EU VAT numbers by country code, format, and checksum — fully in your browser, nothing uploaded.
View image metadata, camera settings, GPS coordinates, and embedded EXIF/IPTC/XMP fields locally in your browser.
Convert files into Data URI strings for embedding in HTML, CSS, or JSON. Works fully offline.
Generate HighwayHash digests for text input or file upload. Compute fast keyed 64-bit, 128-bit, or 256-bit hashes for data integrity and lookup workflows
Generate HMAC (Hash-based Message Authentication Code) signatures for text or file input. Supports SHA-1, SHA-256, SHA-384, and SHA-512 algorithms with hex and base64 output formats.
Browse and search 140+ CSS/HTML named colors with HEX and RGB values
Encode and decode HTML entities. Convert special characters to named, decimal, or hexadecimal HTML entities and vice versa
Convert raw HTML into Markdown with adjustable heading, list, and code block styles. Paste markup or import a file, then copy or download the result.
Search and browse HTTP status codes and their meanings
Validate IBAN numbers with country length, format, and checksum checks.
Create .ics calendar events with time zones, recurrence rules, and reminders.
Remove EXIF/XMP/IPTC/ICC metadata from images without re-encoding. Keeps the original format and works offline.
Extract dominant colors from images and export palettes as HEX, CSS variables, or JSON.
Resize image dimensions directly in your browser and export the result as PNG, JPEG, or WebP.
Convert images into ICO files for favicons and app icons.
Convert images to WebP with optional resizing and batch ZIP export.
Validate 15-digit IMEI numbers with format and Luhn checksum checks.
Look up geolocation, ISP, ASN, reverse DNS, and network details for an IP address, domain, or URL
Convert IPv4 or IPv6 start and end addresses into the minimal set of CIDR blocks that exactly covers the range.
Normalize IP addresses and CIDR notation for both IPv4 and IPv6 formats. Enter any IP or CIDR range to get the standardized format instantly.
Convert IPv6 addresses to MAC addresses. Enter any IPv6 address to extract the corresponding MAC address instantly.
Validate ISBN-10/ISBN-13 numbers, check digits, and conversions
Evaluate JMESPath expressions against JSON data and inspect the result.
Convert JSON to CSV. Paste JSON or import a file; adjust options, preview, copy, and download.
Convert JSON to TOML. Paste JSON or import a file; preview, copy, and download.
Convert JSON to XML. Paste JSON or import a file; preview, copy, and download.
Convert JSON to YAML. Paste JSON or import a file; preview, copy, and download.
Compare two JSON documents and generate path-based diffs with JSON Pointer paths and RFC 6902 JSON Patch output.
Format and prettify JSON with proper indentation. Paste JSON or import a file; preview, copy, and download.
Generate JSON Schema from example JSON data
Validate JSON data against a JSON Schema with draft-aware validation and readable error output.
Sign JWTs locally with HMAC secrets or PEM/JWK private keys for API testing and authentication debugging.
Test JSONPath queries against JSON data and view matched values and paths.
Convert JWK and PEM keys locally. Supports RSA, EC, and OKP key formats.
Decode JSON Web Token headers and payloads locally, inspect registered claims, and verify HS, RS, PS, and ES signatures with a secret, PEM public key, JWK, or JWKS.
Generate Keccak hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate K-Sortable Unique Identifiers (KSUIDs) in-browser with optional custom timestamps.
Compare two lists, surface overlap and exclusions, and export the exact set you need before a sync or cleanup.
Browse and preview fonts installed on your device using the Local Font Access API.
Generate Lorem Ipsum placeholder text with configurable words, sentences, or paragraphs. Supports multiple locales.
Convert MAC addresses to IPv6 link-local addresses. Enter any MAC address and optionally add an interface name to generate the scoped result instantly.
Preview Markdown live with a synchronized outline, HTML sanitization toggle, export-ready HTML, and clean/slate themes.
Convert Markdown to HTML using marked, optionally sanitize with DOMPurify. Preview, copy, and download.
Generate MD4 hashes for text input or file upload. Best for legacy compatibility and non-security-critical integrity checks.
Generate MD5 hashes for text input or file upload. Best for legacy compatibility and non-security-critical integrity checks.
Search and browse MIME types and their file extensions
Convert text to Morse code and vice versa with audio playback support
Generate MurmurHash3 x64 128-bit hashes for text input or file uploads. Calculate fast non-cryptographic checksums for bucketing, deduplication, cache keys, and integrity checks.
Generate MurmurHash3 x86 128-bit hashes for text input or file uploads. Calculate fast non-cryptographic checksums for bucketing, deduplication, cache keys, and integrity checks.
Generate MurmurHash3 x86 32-bit hash for text input or file upload. Calculate fast 32-bit non-cryptographic checksums for data integrity verification and performance-oriented hashing
Discover your public IP address and get detailed information about your internet connection including geolocation, ISP details, and network information
Generate URL-safe NanoIDs in the browser with custom length and alphabet presets.
Browse browser-based IP, CIDR, DNS, HTTP, port, certificate, and SSH utilities. Find the right network tool quickly without uploading data to a server.
Bidirectional converter between numbers and Chinese uppercase amounts. Supports RMB-style units and up to 2 decimal places.
Convert numbers between binary, octal, decimal, hexadecimal, base32, base36, base62, base64, and custom bases from 2 to 64.
Convert OpenAPI 3.x documents into TypeScript types entirely in your browser with common openapi-typescript generation options.
Assess password strength with entropy, composition, and pattern checks plus tips to improve security.
Derive keys from a password and salt with PBKDF2. Configure iterations, hash algorithm, and output length with hex or base64 output.
Generate placeholder images with custom dimensions, colors, gradients, and text. Export as PNG, JPG, SVG, or WebP with Retina support.
Search and browse common network port numbers
Validate PRC Resident ID numbers, decode region, birthdate, and checksum
Format JavaScript, TypeScript, JSON, HTML, CSS, Markdown, YAML, GraphQL, and related files with Prettier directly in your browser.
Generate JJY, BPC, DCF77, MSF, or WWVB radio timecode audio locally to help sync compatible radio-controlled clocks.
Generate random numbers with custom ranges, counts, and optional decimals.
Generate passwords, passphrases, grouped codes, and PINs in your browser.
Test regular expressions, inspect matches, and preview replacements against real text.
Look up reverse DNS PTR records for IPv4 or IPv6 addresses through public DNS-over-HTTPS resolvers directly in the browser.
Generate RIPEMD-128 hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate RIPEMD-160 hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate RIPEMD-256 hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate RIPEMD-320 hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate robots.txt files with user-agent rules, allow/disallow paths, and sitemap links.
Bidirectional converter between Roman numerals and Arabic numbers. Supports standard Roman numerals from 1 to 3999 (I to MMMCMXCIX).
Encrypt and decrypt text using ROT13, ROT5, ROT18, and ROT47 cipher algorithms. Self-reversing encryption for letters, digits, and ASCII characters
Derive keys from a password and salt with scrypt. Configure N, r, p, and output length with hex or base64 output.
Generate SHA-1 hashes for text input or file upload. Best for legacy compatibility and non-security-critical integrity checks.
Generate SHA-224 hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate SHA-256 hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate SHA-384 hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate SHA-512 hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate SHA-512/224 (FIPS 180-4) hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate SHA-512/256 (FIPS 180-4) hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate SHA3-224 (FIPS 202) hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate SHA3-256 (FIPS 202) hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate SHA3-384 (FIPS 202) hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate SHA3-512 (FIPS 202) hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Generate SHAKE128 (FIPS 202) hashes for text input or file upload. Produce variable-length XOF digests for cryptographic checksums, protocol hashing, and data integrity workflows.
Generate SHAKE256 (FIPS 202) hashes for text input or file upload. Produce variable-length XOF digests for cryptographic checksums, protocol hashing, and data integrity workflows.
Generate SipHash-128-2-4 keyed hashes for text input or file upload. Use a 128-bit hex key to compute fast 128-bit non-cryptographic hashes for hash-table, cache-key, and checksum workflows.
Generate SipHash-2-4 keyed hashes for text input or file upload. Use a 128-bit hex key to compute fast 64-bit non-cryptographic hashes for hash-table, cache-key, and checksum workflows.
Generate sitemap.xml files or sitemap indexes from clean URL lists without leaving the browser.
Convert text into URL-friendly slugs. Supports Unicode transliteration for Chinese, Japanese, Korean, Cyrillic, and more.
Generate SM3 hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Format SQL queries in your browser, tune dialect-aware layout rules, and catch common lint issues before you copy or download the result.
Generate Subresource Integrity (SRI) hashes for web resources. Create SHA-256, SHA-384, or SHA-512 hashes to ensure the integrity of external scripts, stylesheets, and other resources
Generate SHA-256 and MD5 fingerprints for OpenSSH public keys, authorized_keys lines, and SSH2 public key blocks.
Track elapsed time with start, pause, lap, and reset controls.
Convert SVG files to PNG, JPEG, or WebP images
Compare two drafts side by side, inspect changed lines, and export a clean unified diff without leaving the browser.
Turn any draft into a live writing dashboard with multilingual counts, vocabulary signals, structure clues, and reading-time estimates.
Compare two local times across time zones and get signed, absolute, ISO 8601, and total-unit differences.
Convert a date and time between time zones with daylight saving support. Compare offsets and copy ISO/UTC formats.
Set a countdown timer with optional sound, vibration, and browser notifications.
Convert TOML to JSON. Paste TOML or import a file; preview, copy, and download.
Convert TOML to YAML. Paste TOML or import a file; preview, copy, and download.
Convert Unicode (IDN) and ASCII (Punycode) domains both ways
Escape and unescape Unicode characters in various formats including \uXXXX, \u{XXXXX}, HTML entities, URL encoding, and U+XXXX notation
Detect zero-width, bidi control, and special whitespace characters, then export a cleaned version.
Convert Unix timestamps to human-readable dates and vice versa. Supports auto-detection of seconds, milliseconds, and nanoseconds.
Encode and decode URL components with percent encoding. Convert special characters to URL-safe format and vice versa for web development and API usage
Parse URLs into components and rebuild them from protocol, credentials, host, path, query parameters, and fragment in one structured editor.
Parse user agent strings to identify browser, OS, device, engine, and CPU details. Works entirely offline.
Validate VINs with length, character, and check digit rules
Generate Whirlpool hash for text input or file upload. Calculate secure cryptographic checksums for data integrity verification and security purposes
Parse X.509 certificates and public keys in PEM, DER, or base64 DER form. Review subjects, issuers, validity dates, fingerprints, extensions, and key details locally in your browser.
Convert XML to JSON. Paste XML or import a file; adjust options, preview, copy, and download.
Generate xxHash XXH3 128 hash for text input or file upload. Calculate fast 128-bit non-cryptographic checksums for data integrity verification and performance-oriented hashing
Generate xxHash XXH3 64 hash for text input or file upload. Calculate fast 64-bit non-cryptographic checksums for data integrity verification and performance-oriented hashing
Generate xxHash XXH32 hash for text input or file upload. Calculate fast 32-bit non-cryptographic checksums for data integrity verification and performance-oriented hashing
Generate xxHash XXH64 hash for text input or file upload. Calculate fast 64-bit non-cryptographic checksums for data integrity verification and performance-oriented hashing
Convert YAML to JSON. Paste YAML or import a file; preview, copy, and download.
Convert YAML to TOML. Paste YAML or import a file; preview, copy, and download.