Developer & Text Tools (142)
Developer friction is mostly small and frequent: inspect a JSON blob, diff two CSVs, decode that base64 in a JWT, count words in a draft, convert a color to hex. The right tool is one that opens instantly and never phones home.
Every tool here runs entirely client-side — your code, keys and text never leave the browser. The parsers follow the actual specs where it matters: CSV quoting per RFC 4180, UTF-8-aware counting, exact base64 alphabet and padding.
Bottom line: bookmark this page next to your editor. When the task is 'turn this into that' or 'count what's in here', the answer is two clicks away and stays on your machine.
Calculators (3)
Bathroom Dimensions TableCalculatorsEvery bathroom clearance in one printable table: code minimums, NKBA comfort guidelines and ADA accessible num…Data Usage CalculatorCalculatorsHow much data do you actually use? Streaming quality, music, video calls and browsing hours turned into GB per…Fire Escape Plan CalculatorCalculatorsThe NFPA gives you 2 minutes from alarm to outside: count your exits per room, pick the meeting point, and dri…
Converters (32)
Binary to Decimal ConverterConvertersConvert binary to decimal and decimal to binary instantly. Positional values explained (128 64 32 16 8 4 2 1),…Binary to Hex ConverterConvertersConvert binary to hexadecimal and back instantly. Byte-grouped, standard notation, with the 4-bit nibble trick…Blade Fuse ChartConvertersAutomotive blade fuse chart: the full color code from 0.5 A dark blue to 120 A purple, the six size families f…Capacitor Code TableConvertersEIA two-character capacitor marking chart: the letter is the E24 significant figure (A = 1.0 through Z = 9.1, …Chmod CalculatorConvertersPick read, write and execute for owner, group and others - get the octal number and symbolic string for chmod,…Currency Code TableConvertersISO 4217 currency codes for the world's traded currencies, with the numeric code and minor-unit digits that pa…Download Time CalculatorConvertersConvert file size and connection speed into real download time - with the megabit-versus-megabyte trap handled…Epoch Timestamp ConverterConvertersConvert Unix epoch timestamps to human dates and back: seconds or milliseconds, live current-time ticker, the …Gigabytes Conversion TableConvertersThe complete GB table: 1 to 1000 GB in megabytes and kilobytes, both decimal (drive box) and binary (OS displa…GB to KB ConverterConvertersConvert gigabytes to kilobytes exactly (1 GB = 1,000,000 KB), with the GiB column that explains why your 1 TB …GB to MBConvertersThe GB to MB chart: 1 GB = 1,000 MB (decimal, what drive makers print), 1 GiB = 1,024 MiB (binary, what your O…GB to TB ConverterConvertersConvert gigabytes to terabytes and back: 1 TB = 1,000 GB decimal or 1,024 GB binary - with cloud-tier and driv…GiB to GB ConverterConvertersConvert gibibytes to gigabytes and back - binary 1024-based GiB versus decimal 1000-based GB - with the 931 GB…Hex Key Size TableConvertersHex key size chart: the full metric ladder from 0.7 mm to 19 mm with inch equivalents and the three near-match…Hex to RGB ConverterConvertersConvert HEX color codes to RGB and back instantly, with a live color preview. For designers, front-end develop…KB to GB ConverterConvertersConvert kilobytes to gigabytes exactly (1,000,000 KB = 1 GB), with real file-size anchors and the KiB column f…KB to MBConvertersThe KB-to-MB chart: 1,000 KB per megabyte decimal, the 1.44 MB floppy disk that was really 1,440 KB, plain-tex…LED Strip Code TableConvertersLED strip SMD codes decoded: 3528 single-color low power, 5050 the three-die RGB workhorse, 2835 the same size…MB to GBConvertersThe MB-to-GB chart: 1,000 MB per gigabyte decimal, what 500 MB and 5 GB actually hold, and how the reverse lad…MB to KBConvertersThe MB-to-KB chart: 1,000 KB per megabyte, the email-attachment ladder from the 25 MB Gmail cap down to the 50…Megabits to Megabytes ConverterConvertersConvert megabits to megabytes instantly (100 Mbps = 12.5 MB/s) and back, with an internet-plan table and real …Nut Size TableConvertersHex nut chart for SAE inch sizes #4 through 1 in and metric M3 through M24: across-flats wrench sizes in inche…Recycling Code TableConvertersThe seven plastic recycling codes decoded with real examples: PET 1 soda bottles, HDPE 2 milk jugs, PVC 3 pipe…Resistor Color Code TableConvertersResistor color code chart: all twelve band colors with their digit, multiplier and tolerance values, how to re…RJ45 Wiring TableConvertersRJ45 termination chart: full T568A and T568B pinouts pin by pin (pair number and color for all eight conductor…Screw Drive Types TableConvertersScrew drive chart: all ten drive families from slotted and Phillips through Robertson, hex socket and Torx to …SD Card Size TableConvertersSD card chart: physical dimensions of all three form factors (Standard 32 x 24 x 2.1 mm, miniSD 21.5 x 20 x 1.…SQL Data Types TableConvertersThe 18 most-used PostgreSQL data types with sizes and ranges verbatim from the official docs - from SMALLINT (…TB to GB ConverterConvertersConvert terabytes to gigabytes both ways: 1 TB = 1,000 GB decimal, 1,024 GB binary - drive boxes vs file explo…Text to Binary ConverterConvertersConvert text to binary code and binary back to text instantly. Every character becomes 8 bits (UTF-8). Great f…Text to Morse Code ConverterConvertersConvert text to Morse code and back instantly. Standard International Morse with letters, numbers and punctuat…Wire Color Code TableConvertersElectrical wire color chart by country: phase conductors L1/L2/L3, neutral and protective earth for the US low…
Text Tools (95)
Accent Marks & Diacritics TableText ToolsThe accent marks table: every common accented letter - á à â ä ã å ç é è ê ñ ó ö ü and the rest - with its Uni…Add Line Numbers to TextText ToolsNumber every line of your text in one paste - 1. style, 1) style, [1] or zero-padded 001 - with a start number…Arrow Symbols TableText ToolsThe arrow symbols table: every common arrow character - → ← ↑ ↓ ↔ ↕ ⇒ ⇔ ➔ and the rest - with its official Uni…ASCII TableText ToolsComplete ASCII reference: all 128 character codes with decimal, hex and binary values, control character names…Base64 Encode & DecodeText ToolsConvert text to Base64 and back with full UTF-8 support - emoji and non-Latin scripts round-trip perfectly, in…Baybayin Alphabet TableText ToolsThe complete Baybayin chart: all 18 letters of the pre-colonial Tagalog script with Unicode names and romanize…Binary Powers TableText ToolsThe powers of two that run computing - bytes, memory walls, the 2⁵³ JavaScript limit - plus an exact BigInt ca…Buhid Alphabet TableText ToolsThe complete Buhid chart: all 18 letters of the living Mangyan script of Mindoro with Unicode names and romani…Case ConverterText ToolsConvert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case. One cli…Check Mark & Cross Symbols TableText ToolsThe check mark symbols table: every tick and cross character - ✓ check mark, ✔ heavy check mark, ☑ ballot box …Codon TableText ToolsThe standard genetic code in DNA alphabet: all 64 codons with amino acid, three- and one-letter codes and prop…Coptic Alphabet TableText ToolsThe complete Coptic alphabet chart: all 32 letters with numeral values, Greek equivalents, transliterations an…Country Codes TableText ToolsTwo-letter country codes (ISO 3166-1 alpha-2) for 50+ countries - the same codes used in domain TLDs, shipping…CSS Color Functions TableText ToolsThe 8 CSS color functions: rgb, hsl, hwb, lab, lch, oklch, color and color-mix - which live in the 1996 sRGB g…CSS Dynamic Viewport Units TableText ToolsThe 8 viewport unit pieces: the mobile 100vh bug that hides heroes under URL bars, dvh tracking the viewport r…CSS Logical Properties TableText ToolsThe 9 logical property swaps: margin-inline-start for margin-left, inline-size for width, inset-* for top and …CSS Named Colors TableText ToolsAll 145 CSS color keywords with exact hex values verbatim from MDN - filter, swatch preview, click any row to …CSS Overflow TableText ToolsThe 6 overflow values: visible, hidden, scroll, auto, clip and per-axis control - with the content-loss trap o…CSS Text Properties TableText ToolsThe 8 text properties that matter: text-align, decoration, transform, letter-spacing, line-height, white-space…CSS Text-Wrap TableText ToolsThe 8 text-wrap pieces: balance for even headlines, pretty for orphan-free paragraphs, stable for editing, ove…CSS Writing Modes TableText ToolsThe 8 writing modes pieces: vertical-rl flow, text-orientation's mixed and upright, the logical property conse…CSV to JSONText ToolsConvert CSV to a JSON array instantly - headers become keys, quoted commas survive, numbers auto-typed, delimi…Escape HTML EntitiesText ToolsTurn ampersands, angle brackets and quotes into safe HTML entities live - display code and math on a page with…Fancy Text ConverterText ToolsTurn plain text into bold, italic, sans and typewriter Unicode styles - live, copy-paste anywhere. Plus why sc…Hanunóo Alphabet TableText ToolsThe complete Hanunóo chart: all 18 letters of the living Mangyan script of Mindoro with Unicode names and roma…HTML Anchor Attributes TableText ToolsThe 8 anchor attributes: href, target=_blank with rel=noopener, the nofollow/sponsored/ugc trio, download, hre…HTML Attributes TableText ToolsThe 14 global HTML attributes with what each actually does: id vs class, the tabindex rule, data-* hooks, ARIA…HTML Details TableText ToolsThe 8 details element pieces: the native disclosure with zero JavaScript, the open attribute, the toggle event…HTML Dialog TableText ToolsThe 8 native dialog element pieces: showModal with focus trap and top-layer rendering, ::backdrop styling, for…HTML Entities TableText ToolsThe 16 HTML entities you actually meet: entity name, what it renders, its decimal code, and where escaping is …HTML Form Elements TableText ToolsThe 8 form elements: form, label, textarea, select, button, fieldset, datalist and output - why every button i…HTML Forms TableText ToolsThe 14 HTML form elements and validation attributes that run without JavaScript: label for, input types, field…HTML Headings TableText ToolsThe 7 HTML heading rules that build a correct document outline: one h1 per page, no level skips, headings-for-…HTML iframe TableText ToolsThe 12 iframe attributes that run safe embeds: sandbox tiers, loading=lazy, the title accessibility rule, aspe…HTML Img Attributes TableText ToolsThe 8 img attributes that matter: srcset with w-descriptors, sizes, loading=lazy, decoding=async, width+height…HTML Input Types TableText ToolsThe 10 input types that matter: text, email, password, number, date, checkbox and radio, range, color, file an…HTML Lang Codes TableText ToolsThe two-letter language subtags for the HTML lang attribute - filter, click to copy lang="xx", with W3C guidan…HTML link TableText ToolsThe 8 link rel values that do real work: stylesheet, canonical, preload vs preconnect, alternate and the secur…HTML Lists TableText ToolsThe 8 HTML list elements and rules: ul vs ol semantics, dl term-description pairs, the nested-list-inside-li p…HTML Media Elements TableText ToolsThe 12 HTML media pieces that run video and audio: source fallbacks, the muted-autoplay-playsinline trio, prel…HTML Meta Tags TableText ToolsThe 8 meta tags that matter: charset, viewport, description, robots, Open Graph cards, theme-color, http-equiv…HTML Meta Tags TableText ToolsThe 14 meta tags and link elements that every web page needs - charset, viewport, description, robots, Open Gr…HTML Popover TableText ToolsThe 8 popover pieces: the one-attribute widget with declarative triggers, auto versus manual dismissal semanti…HTML Semantic Elements TableText ToolsThe 12 semantic HTML elements verbatim from MDN - header, nav, main, article, section, aside, footer, figure, …HTML Tables TableText ToolsThe 10 HTML table elements that make data readable and accessible: caption, thead/tbody/tfoot, th with scope, …HTML Video Element TableText ToolsThe 8 video attributes: the autoplay muted playsinline trio that unlocks silent autoplay, poster, preload leve…HTML Void Elements TableText ToolsAll 13 HTML void elements: br, img, input, meta, link and the rest - why they cannot have children, why the se…HTTP Status Codes TableText ToolsThe 28 HTTP status codes that actually appear in real logs, verbatim from MDN - filter by code, class or sympt…JavaScript Barcode Detector TableText ToolsThe 8 Barcode Detection pieces: the constructor with format hints, getSupportedFormats, detect() on images and…JavaScript Blob TableText ToolsThe 8 Blob pieces: immutable binary containers, slice without copying, text and arrayBuffer reads, stream(), o…JavaScript Dataset TableText ToolsThe 8 dataset pieces: the data-* HTML prefix, the kebab-to-camelCase mapping, delete as attribute removal, CSS…JavaScript DOM Manipulation TableText ToolsThe 8 DOM manipulation APIs: createElement with textContent, append, insertAdjacentHTML, replaceChildren, clon…JavaScript Encoding TableText ToolsThe 8 encoding pieces: TextEncoder for UTF-8 bytes, TextDecoder with fatal and stream options, atob and btoa a…JavaScript Fetch TableText ToolsThe 12 fetch pieces that run real requests: options object, Response.ok vs status, body types, AbortController…JavaScript File API TableText ToolsThe 8 File API pieces: File as a Blob with a name, the promise-based text() and arrayBuffer() reads, FileReade…JavaScript JSON TableText ToolsThe 8 JSON pieces: stringify's silent drops (functions, undefined, Symbols), toJSON custom serialization, pars…JavaScript Keyboard Events TableText ToolsThe 8 KeyboardEvent pieces: keydown/keyup, the layout-aware e.key versus physical e.code, modifier flags and t…JavaScript Proxy TableText ToolsThe 8 Proxy traps: get, set, has, deleteProperty, apply, construct, ownKeys and revocable - how one handler la…JavaScript Regex Groups TableText ToolsThe 7 regex group pieces: numbered captures, named groups, non-capturing forms, lookahead and lookbehind that …JavaScript Regex Methods TableText ToolsThe 8 regex methods: test for existence, match's shape-shifting return, matchAll for extraction with groups, r…JavaScript Regex Syntax TableText ToolsThe 8 regex building blocks: anchors, character classes, shorthands, quantifiers, the dot's newline exception,…JavaScript Service Worker TableText ToolsThe 8 service worker pieces: register and scope, install pre-caching with waitUntil, activate as the version G…JavaScript structuredClone TableText ToolsThe 8 structuredClone pieces: circular refs and Maps surviving, the JSON-to-clone fidelity ladder, the throw-n…JavaScript Trusted Types TableText ToolsThe 8 Trusted Types pieces: DOM sinks rejecting plain strings, named policies as the sanitization home, the en…JavaScript Typed Arrays TableText ToolsThe 8 typed array pieces: the ArrayBuffer slab, typed views like Uint8Array, DataView for byte-precise parsing…JavaScript URL API TableText ToolsThe 8 URL API pieces that replaced regex URL parsing: the URL constructor, searchParams get/set/has, pathname …JavaScript Web Animations API TableText ToolsThe 8 Web Animations API pieces: el.animate with runtime values, awaitable finished promises, playbackRate inc…JavaScript Web NFC Table (NDEFReader)Text ToolsThe 8 Web NFC pieces: the NDEFReader constructor, scan() and its permission prompt, the reading and readingerr…JavaScript WebUSB TableText ToolsThe 8 WebUSB pieces: navigator.usb.getDevices and requestDevice filters, open plus selectConfiguration, claimI…JavaScript Web MIDI TableText ToolsThe 8 Web MIDI pieces: requestMIDIAccess and the gesture gate, inputs and outputs maps, the sysex permission, …JavaScript WebSocket TableText ToolsThe 8 WebSocket pieces: the upgrade handshake, full-duplex send and message, lifecycle events, binary frames w…JSON Escape ToolText ToolsEscape special characters for JSON strings - quotes, backslashes, newlines, tabs - per RFC 8259 section 7, wit…JSON FormatterText ToolsFormat, validate and minify JSON in your browser - pretty print with 2-space or tab indent, exact parse-error …JSON MinifierText ToolsRemove all insignificant whitespace from JSON while preserving string contents per RFC 8259 - reduce API paylo…JSON to CSV ConverterText ToolsConvert a JSON array of objects to CSV with correct RFC 4180 quoting, nested-object handling and a UTF-8 BOM d…JWT DecoderText ToolsPaste a JWT to read its header and payload as JSON, with alg, claim count and expiry timing - exp, iat and nbf…Keyboard Symbols TableText ToolsThe keyboard symbols table: every technical key symbol - Command ⌘, Option ⌥, Shift ⇧, Control ⌃, Escape ⎋, Re…Lao Alphabet TableText ToolsThe Lao script chart: all 27 consonants with their names, initial and final sounds and tone classes (middle, h…Lontara Alphabet TableText ToolsThe complete Lontara chart: all 23 letters of the Buginese and Makassarese abugida, including the four one-let…Markdown Syntax TableText ToolsAll 17 Markdown elements with their syntax, filterable by category - bold, italic, headings, lists, links, ima…Old Persian Cuneiform TableText ToolsThe complete Old Persian cuneiform chart: all 50 signs of Darius I’s royal script with Unicode names and…Punctuation Names TableText ToolsEvery keyboard symbol with its names: the hash and octothorpe, tilde, caret, ampersand, backtick, curly braces…Regex Cheat Sheet TableText ToolsA filterable regular expression cheat sheet with a live tester - every JavaScript regex token explained with e…Remove Accents from TextText ToolsStrip accents and diacritics instantly: Zoë to Zoe, résumé to resume, Grüße to Grusse - with special ligatures…SHA-256 Hash GeneratorText ToolsGenerate SHA-256 hashes of any text in your browser using Web Crypto - the text never leaves the page, and the…SHA-256 Hash GeneratorText ToolsGenerate SHA-1, SHA-256, SHA-384 and SHA-512 digests of any text entirely in your browser, per NIST FIPS 180-4…URL Slug GeneratorText ToolsTurn any title into a clean URL slug: lowercase, accents stripped, spaces to hyphens. Perfect for blog posts, …Strip HTML TagsText ToolsRemove HTML tags from any text instantly — convert markup to clean plain text, decode entities, and see how ma…Tagbanwa Alphabet TableText ToolsThe complete Tagbanwa chart: all 16 letters of the Palawan script with Unicode names and romanized values - th…Text CompareText ToolsCompare two texts line by line: added, removed and unchanged lines, with live counts. Runs entirely in your br…Unicode Character InspectorText ToolsPaste any text and see every character's Unicode codepoint, hex, decimal value and exact UTF-8 byte sequence -…URL Encoder & DecoderText ToolsEncode and decode URLs and query values correctly - component mode for ?q= parameters, full-URL mode that keep…URL Parser OnlineText ToolsDissect any URL into protocol, host, port, path, query parameters and fragment using the browser’s native URL …Word CounterText ToolsCount words, characters (with and without spaces), sentences and paragraphs instantly. Live statistics with es…YAML vs JSONText ToolsYAML and JSON compared across 10 features - comments, anchors, multi-document streams and the indentation trap…
Generators (10)
Airport Codes TableGeneratorsThe top 20 US airports in one table: IATA code, city, and 2024 enplaned passengers from BTS - ATL at 61 millio…Apollo Missions TableGeneratorsEvery flown Apollo mission in one table: from Apollo 1's fire (1967) to Apollo 17's final landing (1972), with…Country Calling Codes TableGeneratorsThe international country calling codes table: every major E.164 assignment from +1 (the shared North American…CSS Gradient GeneratorGeneratorsBuild linear and radial CSS gradients with a live preview and one-click copy - presets for sunset, ocean and m…Lorem Ipsum GeneratorGeneratorsGenerate placeholder text with exact paragraph and word counts, optional classic start, one-tap copy. Free, in…Random Color GeneratorGeneratorsDraw random colors as HEX, RGB and HSL side by side, with one-click copies, a big live swatch, and a fixed pal…Random Emoji GeneratorGeneratorsGet random emoji instantly — one at a time or batches, with category filters for faces, animals, food and more…Trusted Traveler Programs TableGeneratorsTSA PreCheck, Global Entry, NEXUS, and SENTRI side by side - official five-year fees, what each program actual…US Area Codes TableGeneratorsThe complete state-by-state table of US telephone area codes - from Alaska's single 907 to California's 41 - w…UUID v4 GeneratorGeneratorsGenerate 1-50 random UUID v4 identifiers in your browser with crypto-grade randomness. Uppercase and no-hyphen…
Toolbox (2)
Frequently asked questions
Is my code or text uploaded anywhere?
No. All parsing and conversion runs in your browser with JavaScript — the page never transmits your input, which is why it also works offline once loaded.
Which CSV rules does the CSV parser follow?
RFC 4180: quoted fields, escaped double quotes, embedded commas and CRLF line breaks. That is the dialect most exports claim and the one that breaks naive split(',') code.
Does Base64 encoding handle Unicode?
Yes — text is UTF-8 encoded before the base64 alphabet is applied, which is the correct pipeline for emoji, CJK and any non-ASCII content.
Are the text tools good for SEO and writing work?
The counters are character-accurate (UTF-8 aware, not byte counts), which is what metadata limits and platform caps actually measure.