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.gitignore generatorGenerate .gitignore files for your projects by selecting templatesAdler-32 checksum calculatorCalculate Adler-32 checksums for text or files to check data integrity and detect errors.AES decryptorDecrypt ToolTab AES JSON envelopes with the original password or raw hexadecimal key.AES encryptorEncrypt text or files in your browser with AES-GCM, AES-CBC, or AES-CTR using a password-derived key or a raw hexadecimal key.Archive viewerOpen ZIP, TAR, GZ, and TGZ files locally in your browser, browse their folder tree, preview readable entries, and download individual files.Argon2 password hash generatorGenerate encoded Argon2 password hashes in the browser with configurable algorithm, memory, iterations, parallelism, salt, and optional secretArgon2 password verifierVerify whether a password matches an encoded Argon2 hash string. Runs locally in your browser and supports optional pepper/secret verification.ASCII art generatorConvert text to ASCII art with FIGlet fonts. Enter a word or phrase, choose a font, and copy the result.Audio recorderRecord audio from your microphone, preview the recording, and download it. Everything stays on your device.Barcode generatorGenerate barcodes (CODE128, EAN, UPC, etc.) and download as PNG, SVG, JPEG, or WebP.Barcode readerDecode barcodes and QR codes from image files or a live camera feed, entirely in your browser.Base16 decoderDecode Base16 (hexadecimal) text or files into raw bytes for inspection and testing.Base16 encoderEncode text or files as Base16 (hexadecimal) for data transfer, debugging, and web development.Base32 decoderDecode Base32 text or files into their original data.Base32 encoderEncode text or files as Base32 for data transfer, storage, and web development.Base58 decoderDecode Base58 text or files back to original data for transport, storage, and integration.Base58 encoderEncode text or files to Base58 for data transport, storage, and web development.Base64 encoder and decoderEncode plain text to Base64 and decode Base64 back to Unicode text directly in your browser.Base85 decoderDecode Base85 text or files into their original data.Base85 encoderEncode text or files to Base85 for data transport, storage, and web development.Basic Auth generatorGenerate an HTTP Basic Authorization header by encoding a username and password as Base64 for API testing and development.bcrypt password hash generatorGenerate bcrypt password hashes locally with configurable cost, fresh salts, and copy-ready output for authentication systems.bcrypt password verifierVerify a plain text password against a bcrypt hash locally in your browser. Useful for debugging authentication flows and checking password migrationsBIC/SWIFT validatorValidate BIC/SWIFT codes and parse bank, country, and branch details.BIP39 mnemonic generatorGenerate, validate, and convert BIP39 mnemonic phrases in your browser.BLAKE2b hash calculatorCalculate BLAKE2b cryptographic hashes for text or files to verify data integrity.BLAKE2s hash calculatorCalculate BLAKE2s cryptographic hashes for text or files to verify data integrity.BLAKE3 hash calculatorCalculate BLAKE3 cryptographic hashes for text or files to verify data integrity.Bulk UUID v4 generatorGenerate 1–1,000 UUID v4 values locally, ready to copy or download.Business day calculatorCount business days between dates, and add or subtract business days with custom weekends and holidays.CameraTake photos and record short videos with your device’s camera, then download them.Case converterConvert text between different naming conventions: camelCase, PascalCase, snake_case, kebab-case, and more.Chinese financial numeral converterConvert between numbers and Chinese financial numerals, with RMB units and up to 2 decimal places.Chinese resident ID validatorValidate Chinese resident ID numbers and read the region, date of birth, and checksum.Chmod calculatorConvert Unix file permissions between numeric (755) and symbolic (rwxr-xr-x) notation.CIDR merger and excluderMerge IPv4 and IPv6 CIDR blocks, subtract excluded networks, and copy the minimal resulting CIDR list.CIDR parserParse CIDR notation to inspect IPv4 or IPv6 network ranges, masks, and integer boundaries directly in the browser.CityHash64 hash calculatorGenerate CityHash64 hashes for text input or file uploads, with an optional seed for performance-oriented checksums and cache keys.Code screenshot generatorGenerate syntax-highlighted code screenshots and export them as SVG, PNG, JPEG, WebP, or HTML.Color contrast checkerCheck WCAG contrast ratios for foreground and background colors, including AA/AAA for normal and large text.Color converterConvert colors between HEX, RGB, HSL, HSV, HWB, LAB, LCH, CMYK and CSS keywords. Real-time bidirectional conversion with alpha channel support.Color pickerPick colors from your screen or images. Sample pixels and copy HEX, RGB, HSL, HSV, and CMYK values instantly.Cookie parserParse Cookie and Set-Cookie headers into structured JSON for inspection.Countdown timerSet a countdown with presets, pause and resume controls, full-screen mode, and local alerts.CRC checksum calculatorCalculate CRC checksums for text or files. Compare common CRC-8, CRC-16, CRC-24, CRC-32, and CRC-64 variants for data integrity checks.Credit card validatorCheck credit card numbers with the Luhn algorithm and identify matching card networks.Cron expression generatorBuild five-field cron expressions with visual controls, presets, and upcoming run previews.Cron expression parserParse, validate, and explain cron schedules with field details and upcoming run times.CSR generatorGenerate PKCS#10 certificate signing requests in your browser. Create a fresh key or import an existing PKCS#8 private key, fill in Subject and SAN, then download the CSR.CSS box shadow generatorCreate multi-layer CSS box-shadow values with live preview, inset toggles, and precise controls.CSS gradient generatorCreate layered linear, radial, and conic gradients with draggable color stops, blend modes, and export-ready CSS.CSV to JSON converterConvert CSV to JSON. Paste CSV or import a file; adjust options (headers, delimiter, trim, etc.), preview, copy, and download.CUID2 generatorGenerate secure, collision-resistant CUID2 IDs in your browser with adjustable length and batch count.cURL converterConvert cURL commands into code for many languages and HTTP clients.Current network timeCompare your device clock with an estimated network time and view the time difference.Data URI to file converterDecode Data URI strings into files, inspect MIME type and encoding, and download the result offline.Device informationInspect browser, display, hardware, network, storage, and capability details from your current device without uploading anything.DNS lookupQuery A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, SRV, HTTPS, and SVCB DNS records through DNS over HTTPS resolvers.Docker run to Compose converterConvert docker run commands into a docker-compose.yml file.Duration calculatorAdd or subtract ISO 8601 durations from a base time in any time zone, with millisecond precision.Email validatorValidate email addresses with syntax, length, and domain checks.EU VAT number validatorValidate EU VAT numbers by country code, format, and checksum — fully in your browser, nothing uploaded.EXIF viewerView image metadata, camera settings, GPS coordinates, and embedded EXIF/IPTC/XMP fields locally in your browser.Favicon assets generatorGenerate favicon assets in your browser, including ICO and PNG files, an Apple touch icon, PWA icons, a web manifest, and an HTML snippet.File to data URI converterConvert files into Data URI strings for embedding in HTML, CSS, or JSON. Works fully offline.GIF to animated WebP converterConvert animated GIFs to animated WebP with scaling, playback speed, loop control, previews, and batch ZIP export.GIF to APNG converterConvert animated GIFs to APNG with local batch export, scaling, playback speed, and loop controls.HighwayHash hash calculatorGenerate HighwayHash digests for text input or file upload. Compute fast keyed 64-bit, 128-bit, or 256-bit hashes for data integrity and lookup workflowsHMAC generatorGenerate 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.HTML color namesBrowse and search 140+ CSS/HTML named colors with HEX and RGB valuesHTML entity encoder and decoderEncode and decode HTML entities. Convert special characters to named, decimal, or hexadecimal entities and back.HTML to Markdown converterConvert raw HTML into Markdown with adjustable heading, list, and code block styles. Paste markup or import a file, then copy or download the result.HTTP Basic auth decoderDecode an HTTP Basic Authorization header to recover the username and password. Useful for debugging and API testing.HTTP status code lookupSearch and browse HTTP status codes and their meaningsIBAN validatorValidate IBANs by checking country-specific length, format, and checksum.iCal event generatorCreate .ics calendar events with time zones, recurrence rules, and reminders.Image metadata cleaner (EXIF)Remove EXIF/XMP/IPTC/ICC metadata from images without re-encoding. Keeps the original format and works offline.Image palette extractorExtract dominant colors from images and export palettes as HEX, CSS variables, or JSON.Image resizerResize image dimensions directly in your browser and export the result as PNG, JPEG, or WebP.Image to AVIF converterConvert images to AVIF with adjustable quality, speed, and dimensions, optional lossless encoding, and batch ZIP downloads.Image to ICO converterConvert images into ICO files for favicons and app icons.Image to PDF converterCombine images into a single PDF locally in your browser.Image to WebP converterConvert images to WebP with optional resizing and batch ZIP export.IMEI validatorValidate 15-digit IMEI numbers with format and Luhn checksum checks.Invisible character checkerFind hidden characters, clean selected categories and export annotated text and a complete reportIP information lookupLook up geolocation, ISP, ASN, reverse DNS, and network details for an IP address, domain, or URL.IP range to CIDR converterConvert IPv4 or IPv6 start and end addresses into the minimal set of CIDR blocks that exactly covers the range.IP/CIDR normalizerNormalize IPv4 and IPv6 addresses and CIDR notation.IPv6 address to MAC address converterConvert IPv6 addresses to MAC addresses. Enter any IPv6 address to extract the corresponding MAC address instantly.IPv6 ULA generatorGenerate a local IPv6 /48 prefix using secure browser randomness and plan its /64 subnets.ISBN validatorValidate ISBN-10/ISBN-13 numbers, check digits, and conversionsJMESPath testerEvaluate JMESPath expressions against JSON data and inspect the result.JSON diff pathsCompare two JSON documents and generate path-based diffs with JSON Pointer paths and RFC 6902 JSON Patch output.JSON formatterFormat and prettify JSON with proper indentation. Paste JSON or import a file; preview, copy, and download.JSON Schema generatorGenerate JSON Schema from example JSON dataJSON Schema validatorValidate JSON data against a JSON Schema with draft-aware validation and readable error output.JSON to CSV converterConvert JSON to CSV. Paste JSON or import a file; adjust options, preview, copy, and download.JSON to TOML converterConvert JSON to TOML. Paste JSON or import a file; preview, copy, and download.JSON to XML converterConvert JSON to XML. Paste JSON or import a file; preview, copy, and download.JSON to YAML converterConvert JSON to YAML. Paste JSON or import a file; preview, copy, and download.JSONPath testerTest JSONPath queries against JSON data and view matched values and paths.JWK ↔ PEM converterConvert JWK and PEM keys locally. Supports RSA, EC, and OKP key formats.JWT decoder and verifierDecode 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.JWT signerSign JWTs locally with HMAC secrets or PEM/JWK private keys for API testing and authentication debugging.Keccak hash calculatorCalculate Keccak hashes for text or files to check data integrity.KSUID generatorGenerate K-Sortable Unique Identifiers (KSUIDs) in-browser with optional custom timestamps.List comparisonCompare two lists to find matching and different items, then export the results you need.Local font viewerBrowse and preview fonts installed on your device using the Local Font Access APILorem ipsum generatorGenerate placeholder text by word, sentence, or paragraph count. Supports multiple text locales.MAC address to IPv6 link-local address converterConvert MAC addresses to IPv6 link-local addresses. Enter any MAC address and optionally add an interface name to generate the scoped result instantly.Markdown previewerPreview Markdown live with a synchronized outline, HTML sanitization toggle, export-ready HTML, and clean/slate themes.Markdown to HTML converterConvert Markdown to HTML with marked, optionally sanitize it with DOMPurify, then preview, copy, or download the result.Max UUID generatorGet the all-one UUID in canonical, hex and URN formsMD4 hash calculatorGenerate MD4 hashes for text input or file upload. Best for legacy compatibility and non-security-critical integrity checks.MD5 hash calculatorGenerate MD5 hashes for text input or file upload. Best for legacy compatibility and non-security-critical integrity checks.MIME type lookupSearch and browse MIME types and their file extensionsMorse code converterConvert text to Morse code and back, with audio playback.MurmurHash3 (x64 128-bit) hash calculatorGenerate MurmurHash3 x64 128-bit hashes for text input or file uploads. Calculate fast non-cryptographic checksums for bucketing, deduplication, cache keys, and integrity checks.MurmurHash3 (x86 128-bit) hash calculatorGenerate MurmurHash3 x86 128-bit hashes for text input or file uploads. Calculate fast non-cryptographic checksums for bucketing, deduplication, cache keys, and integrity checks.MurmurHash3 (x86 32-bit) hash calculatorGenerate a MurmurHash3 x86 32-bit hash from text or a file for fast, non-cryptographic integrity checks.My IP addressFind your public IP address and view its location, ISP, and network details.NanoID generatorGenerate URL-safe NanoIDs in the browser with custom length and alphabet presets.Nil UUID generatorGet the all-zero UUID in canonical, hex and URN formsNumber base converterConvert numbers between binary, octal, decimal, hexadecimal, base 32, base 36, base 62, base 64, and custom bases from 2 to 64.OpenAPI to TypeScript converterConvert OpenAPI 3.x documents into TypeScript types entirely in your browser with common openapi-typescript generation options.Password strength checkerAssess password strength with entropy, composition, and pattern checks plus tips to improve security.PBKDF2 key derivationDerive keys from a password and salt with PBKDF2. Configure iterations, hash algorithm, and output length with hex or base64 output.PDF information viewerView PDF metadata, page count, version, file details, and document properties locally in your browser.PDF mergerMerge PDF files locally in your browser. Preview pages, change their order, and choose an output filename.PDF page numberingAdd page numbers to selected PDF pages locally in your browser with configurable format, position, font, and margins.PDF page organizerReorder, rotate, and remove PDF pages locally in your browser before exporting a new PDF.PDF splitterSplit PDF pages by range, extract selected pages into one PDF, or download multiple split files as a ZIP archive.PDF text extractorExtract selectable text from PDF files locally in your browser and export it as plain text.PDF to image converterConvert PDF pages to PNG, JPG, or WebP images with DPI controls, page preview, and ZIP export.PGP key generatorGenerate OpenPGP key pairs in your browser with ECC or RSA, optional passphrase protection, fingerprints, and a revocation certificate.Placeholder image generatorCreate placeholder images with custom dimensions, colors, gradients, and text. Export PNG, JPG, SVG, or WebP files, including high-resolution versions.PNG optimizerCompress PNG images in your browser with lossless Oxipng optimization while preserving visual quality.Port number lookupSearch and browse common network port numbersPrettier code formatterFormat JavaScript, TypeScript, JSON, HTML, CSS, Markdown, YAML, GraphQL, and related files with Prettier directly in your browser.QR code generatorGenerate QR codes for text, links, Wi-Fi credentials, contacts, phone actions, locations, and calendar events. Download the result as PNG, JPG, WebP, or SVG.QR code readerDecode QR codes from image files or a live camera feed, entirely in your browser.Radio timecode syncGenerate JJY, BPC, DCF77, MSF, or WWVB radio timecode audio locally to help sync compatible radio-controlled clocksRandom number generatorGenerate random numbers with custom ranges, counts, and optional decimals.Random password generatorGenerate passwords, passphrases, grouped codes, and PINs in your browser.Regex tester and replacerTest regular expressions, inspect matches, and preview replacements against real text.Remove PDF owner passwordRemove PDF owner password restrictions locally so editing, printing, and copying permissions are unlocked.Reverse IP lookupLook up reverse DNS PTR records for IPv4 or IPv6 addresses through public DNS-over-HTTPS resolvers directly in the browser.RIPEMD-128 hash calculatorGenerate a RIPEMD-128 hash from text or a file for integrity checks and compatibility with existing systems.RIPEMD-160 hash calculatorGenerate a RIPEMD-160 hash from text or a file for integrity checks and compatibility with existing systems.RIPEMD-256 hash calculatorGenerate a RIPEMD-256 hash from text or a file for integrity checks and compatibility with existing systems.RIPEMD-320 hash calculatorGenerate a RIPEMD-320 hash from text or a file for integrity checks and compatibility with existing systems.robots.txt generatorGenerate robots.txt files with user-agent rules, allow/disallow paths, and sitemap links.Roman numeral converterConvert between Roman and Arabic numerals. Supports values from 1 to 3,999 (I to MMMCMXCIX).ROT cipher encoder and decoderEncode and decode text with ROT13, ROT5, ROT18, and ROT47. Each transformation reverses itself when applied again to the supported letters, digits, or ASCII characters.Screen recorderRecord your screen, a window, or a browser tab with optional system audio and microphone capture.scrypt key derivationDerive keys from a password and salt using scrypt. Configure N, r, p, and output length, then export in hexadecimal or Base64.SHA-1 hash calculatorGenerate SHA-1 hashes for text input or file upload. Best for legacy compatibility and non-security-critical integrity checks.SHA-224 hash calculatorCalculate SHA-224 cryptographic hashes for text or files to verify data integrity.SHA-256 hash calculatorCalculate SHA-256 cryptographic hashes for text or files to verify data integrity.SHA-384 hash calculatorCalculate SHA-384 cryptographic hashes for text or files to verify data integrity.SHA-512 hash calculatorHash text or a file locally and view the digest in four formatsSHA-512/224 hash calculatorHash text or a file locally and view the digest in four formatsSHA-512/256 hash calculatorHash text or a file locally and view the digest in four formatsSHA3-224 (FIPS 202) hash calculatorCalculate SHA3-224 (FIPS 202) cryptographic hashes for text or files to verify data integrity.SHA3-256 (FIPS 202) hash calculatorCalculate SHA3-256 (FIPS 202) cryptographic hashes for text or files to verify data integrity.SHA3-384 (FIPS 202) hash calculatorCalculate SHA3-384 (FIPS 202) cryptographic hashes for text or files to verify data integrity.SHA3-512 (FIPS 202) hash calculatorCalculate SHA3-512 (FIPS 202) cryptographic hashes for text or files to verify data integrity.SHAKE128 hash calculatorHash text or a file locally and view the digest in four formatsSHAKE256 hash calculatorHash text or a file locally and view the digest in four formatsSipHash-128-2-4Compute the standard 128-bit SipHash variant with a 128-bit keySipHash-2-4Hash text or a file with a 128-bit key and a 64-bit SipHash tagSitemap XML generatorBuild complete URL sitemaps or sitemap indexes with optional metadataSlug generatorTransliterate multilingual text into a Latin slugSM3 hash calculatorHash text or a complete file in four output encodingsSQL formatter and linterFormat 19 SQL dialects with configurable local checksSRI integrityGenerate three SRI digests and verify resource integritySSH key generatorGenerate an Ed25519 or RSA key pair locally in OpenSSH formatSSH public key fingerprintInspect OpenSSH, authorized_keys and RFC 4716 public keys locallyStopwatchRecord lap times and cumulative totals. Export all laps as CSV, or clear the laps while keeping the timer running.SVG optimizerTune SVGO passes, inspect markup and download the complete SVGSVG to imageConvert SVG images to PNG, JPEG, or WebP.Text comparisonCompare two versions with aligned lines, inline changes and a complete diff exportText statisticsCount words, estimate reading time, and find repeated terms in your writing.Time difference calculatorCalculate the elapsed time between two dates and times with time zones.Time zone converterConvert dates and times between IANA time zonesTOML to JSONConvert TOML data to JSON locallyTOML to YAMLConvert TOML data to YAML locallyULID generatorGenerate timestamped ULIDs with optional monotonic batchesUnicode and PunycodeConvert Unicode domain labels and ASCII Punycode representationsUnicode escape and unescapeConvert nine Unicode representations and strictly decode mixed escapes and UTF-8 bytesUnit converterConvert units of length, mass, temperature, area, volume, speed, data, and time locally.Unix timestamp converterConvert timestamps and dates with exact nanosecond precision.URL encoder and decoderEncode and decode URLs locally, with separate modes for URL components and complete URIs.URL parser and builderEdit URL components and ordered query pairs, preserving duplicatesUser-Agent parserInspect browser, operating system, rendering engine, device, and CPU details locally.UUID decoderInspect UUID version, variant, time fields and lossless numeric representationsUUID format converterConvert UUID, Base64, hex, decimal, octal and binary without precision lossUUID v1 / v6 converterReorder UUID v1 and v6 bidirectionally while preserving exact time, node and sequence fieldsUUID v1 generatorGenerate time-and-node UUID v1 locally with private random nodes and batchesUUID v3 generatorGenerate a deterministic MD5-based UUID v3 locally from a namespace and nameUUID v4 generatorGenerate one lowercase UUID v4 locally with secure randomnessUUID v5 generatorGenerate a deterministic SHA-1-based UUID v5 locally from a namespace and nameUUID v6 generatorGenerate time-ordered UUID v6 with custom timestamps, nodes and sequencesUUID v7 generatorGenerate UUID v7 with current or custom milliseconds and increasing order within each batchUUID validatorValidate canonical UUID format, version and variant and inspect bytes and segmentsVIN checksum validatorCheck 17-character VINs and their ninth-position digit, and inspect fieldsWhirlpool hash calculatorHash text or a complete file in four output encodingsX.509 certificate and public key parserParse 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.XML to JSONConvert XML attributes, mixed content and configurable JSON structuresXXH3-128 hash calculatorCompute XXHash for text or complete files in four encodingsXXH3-64 hash calculatorCompute XXHash for text or complete files in four encodingsXXH32 hash calculatorCompute XXHash for text or complete files in four encodingsXXH64 hash calculatorCompute XXHash for text or complete files in four encodingsYAML to JSONConvert YAML data to JSON locallyYAML to TOMLConvert YAML data to TOML locally