S3eidat Tools

Make a Wi-Fi QR code that phones join by scanning (WPA/WPA2/WPA3, WEP or open; hidden networks), as PNG or SVG, or a printable PDF card like the website's: coloured header with the Wi-Fi symbol, "Scan to join", the QR code, network name and (optionally) the password, on an A6 card, an A4 poster, or A4 sheets of 4 or 9 cards to cut. Special characters (; , : " \) are escaped. The PDF card uses English labels and Latin text only for now. Web version: https://s3eidat.github.io/wifi-card/

Roll dice with standard notation (2d6+3, d20, d%, 4d6dl1 / "4d6 drop lowest", 2d20kh1 advantage, 2d20kl1, 5d10dh2; up to 100 dice per term, 2–1000 sides, 20 terms), flip coins (counts + streaks), or draw random whole numbers in a range (optionally unique and sorted, up to 10,000). Crypto random with rejection sampling (no modulo bias); optional seed for reproducible results. Web version: https://s3eidat.github.io/dice-roller/

Pick a random winner (or several, without repeats, like spinning with "remove winner" on) from a list of names, or shuffle / sort the whole list. Fair: crypto random with rejection sampling. Entries are trimmed, cut to 100 characters, max 500; at least 2 needed. Optional seed for a reproducible draw. Web version: https://s3eidat.github.io/wheel-picker/

Split a list of people into fair random teams: choose the number of teams or people per team. Add a skill level ("Ali, 5" / "Sara: 3") and teams are balanced by total skill (people without one count as the average). Team names: numbers, letters, colours, animals or your own. Crypto-random shuffle; optional seed for a reproducible split. Max 2000 people, 100 teams. Web version: https://s3eidat.github.io/team-maker/

Run a JavaScript regular expression against text: every match with its index, length, numbered and named capture groups, plus an optional replace preview ($1, $<name>, $&, $`, $', $$). Flags g i m s u y (and d, v). Runs in an isolated worker with a timeout (default 1.5 s) so catastrophic backtracking is reported instead of hanging. Lists up to 5000 matches. Web version: https://s3eidat.github.io/regex-playground/

Draw Secret Santa (gift exchange) pairs: everyone gives to exactly one other person and receives from one, never themselves. Exclusions (couples, housemates…) block a pair both ways. Checks exactly whether a draw is possible and explains why not (and which exclusion to drop). Crypto random and uniform; optional seed. Up to 200 people. Nothing is emailed: hand each giver only their own line. Optional budget, date and message are echoed for slips. Web version: https://s3eidat.github.io/secret-santa/

Format SQL (one clause per line, indented sub-queries, CASE blocks, JOIN … ON with AND/OR, CREATE TABLE column lists) or minify it to one line per statement. Options: keyword case (UPPER, lower, keep), indent (2, 4, tab), trailing or leading commas, keep/drop comments when minifying. Dialect-neutral tokenizer: understands -- and /* */ comments, '' and E'\'' strings, "x", `x` and [x] identifiers, $$ dollar quotes, ::casts, JSON operators, :name/$1/? parameters. Only re-spaces; never runs anything. Give "text" or a file "path". Web version: https://s3eidat.github.io/sql-format/

IPv4: from "192.168.1.0/26", "10.0.0.5 255.255.255.0" or a wildcard mask, get network, broadcast, first/last host, usable and total addresses, netmask, wildcard, class, address type (private, CGNAT, loopback, documentation…), integer/hex/binary forms; optionally split into N equal subnets or allocate VLSM blocks by host counts ("Sales:50, Ops:20"). /31 and /32 follow RFC 3021. IPv6: compressed (RFC 5952) and expanded forms, network, first/last address, address count, number of /64s, reverse DNS name and type. Web version: https://s3eidat.github.io/subnet-calc/

Arabic text utilities. mode "clean": remove tashkeel (harakat and Quranic marks, optionally keeping shadda), remove tatweel (kashida), normalise letters (alef with hamza/madda/wasla → bare alef; alef maqsura and Farsi ya → ya; ta marbuta → ha; hamza on waw/ya → waw/ya), switch Latin , ; ? to Arabic punctuation, and convert digits (Arabic-Indic ↔ Western). mode "arabizi": turn Arabizi / Franco-Arabic chat text (mar7aba, 3arabi, 5ala9, el bait) into Arabic script. Returns the result with letter/word/character counts. Give "text" or a text file "path". Web version: https://s3eidat.github.io/arabic-tools/

Convert text case: upper, lower, title (smart: keeps small words lower and iPhone/NASA as typed), sentence, camel, pascal, snake, kebab, constant, alternate, inverse. Works line by line and handles Unicode (Arabic, accents, ß). Web version: https://s3eidat.github.io/case-convert/

Format references from structured fields in APA 7, MLA 9, Chicago author-date (17th), Harvard (Cite Them Right) or IEEE, for books, book chapters, journal articles, web pages, newspaper/magazine articles, videos and reports. Handles author-count rules (et al.), initials, organisations as authors, editions, page ranges (MLA 127-53), DOIs, URLs and access dates, and title case for MLA/Chicago/IEEE. Returns each citation as plain text and HTML (italics as <i>), the in-text citation, missing-field hints, and the whole list as a bibliography sorted for the style (numbered for IEEE). Web version: https://s3eidat.github.io/citation-gen/

Clean up text line by line with a fixed pipeline (same order as the website): strip HTML tags and decode entities → remove emojis → trim each line → collapse repeated spaces → remove empty lines → remove duplicate lines (optionally ignoring case) → sort (A–Z, Z–A, natural, by length) → reverse → shuffle (seedable) → add line numbers. Returns the cleaned text plus counts, or writes it to a file when "output" is given. Give "text" or a text file "path". Web version: https://s3eidat.github.io/text-cleaner/

Compare two texts line by line (Myers diff) and return a unified diff (3 lines of context, like `diff -u`), counts of added/removed/unchanged lines, and change blocks where each removed line is paired with the added line that replaced it and the changed words are marked [-old-] / {+new+}. Can ignore whitespace and case. Works with any language (Arabic included). Up to 50,000 lines per side. Web version: https://s3eidat.github.io/diff-view/

Escape or unescape a string for a target: JSON (string body), JavaScript (incl. template literals), HTML, XML, URL (encodeURIComponent, optional form +), SQL (doubled quotes, optional MySQL backslashes and wrapping quotes), CSV field (RFC 4180; comma, semicolon or tab), regex, POSIX shell single quotes, C/C++, Java/C#, and Unicode escapes (\uXXXX, \u{X}, \UXXXXXXXX, &#xX;, U+XXXX). Options per target as on the website. Set "allTargets" to get the escaped form for every target at once. Web version: https://s3eidat.github.io/text-escape/

Restyle text with Unicode look-alike characters for bios and posts (28 styles): Bold, Italic, Bold italic, Script, Bold script, Fraktur, Bold fraktur, Double-struck, Sans-serif, Sans bold, Sans italic, Sans bold italic, Monospace, Circled, Circled dark, Squared, Squared dark, Parenthesized, Fullwidth, Small caps, Superscript, Upside down, Strikethrough, Underline, Double underline, Slashed, Overline, Wide spaced. Only Latin letters and digits change (other scripts such as Arabic and emoji pass through); some styles cover only capitals or only some symbols. Give one "style", or none to get every style. Up to 20,000 characters. Web version: https://s3eidat.github.io/fancy-text/

Fix text typed with the wrong keyboard layout between US English (QWERTY) and Arabic (101): "hgsghl ugd;l" becomes the Arabic greeting, and Arabic gibberish typed on English keys becomes "hello". Direction "auto" detects it; in mixed text only the words that look mistyped are converted (using small English/Arabic letter-pair models), so words that are already right stay as they are. Handles the shift layer (harakat, hamza forms), lam-alef keys and Caps Lock (all-caps Latin input is treated as lowercase). Web version: https://s3eidat.github.io/layout-fixer/

Generate placeholder text: classic Lorem ipsum, readable English filler, or Arabic filler. Choose paragraphs (max 100), sentences (max 500) or words (max 10000); optionally start with the classic opener and wrap paragraphs in <p> tags. Give a seed for repeatable output (the same seed gives the same text). Writes a .txt/.html file instead when "output" is given. Web version: https://s3eidat.github.io/lorem-gen/

Translate text to International Morse code and back. Encoding: letters separated by spaces, words by " / "; accents are folded (é → E) and characters without a code are skipped and counted. Decoding accepts . and - plus look-alikes (• · – — _), with words split by /, | or 2+ spaces; unknown codes become #. Encoding also returns the playing time at a given speed (PARIS timing: dot = 1200/WPM ms). No audio. Web version: https://s3eidat.github.io/morse-code/

Spell a number in words in English and Arabic: English cardinal (with decimals, optional British "and"), ordinal (twenty-first), cheque wording for an amount in a currency (cents in words or as 25/100, optional "only"), Arabic cardinal, and Arabic tafqeet for amounts with correct gender/number agreement of the currency noun (optional "faqat … la ghayr" wrapper and the modern 100 spelling). Currencies: JOD, USD, SAR, AED, KWD, EGP, GBP (or none). Accepts Arabic-Indic digits and thousands separators. Up to 999 trillion (15 digits). Web version: https://s3eidat.github.io/number-words/

Score how easy an English text is to read: Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, SMOG, Coleman-Liau and Automated Readability Index (same formulas, sentence splitter and syllable estimate as the website), plus a verdict, average grade level, and Hemingway-style hints: long sentences (over 20 / 30 words), passive voice and adverbs. The formulas are built for English; for Arabic text the result says so (arabicWarning). Give "text" or a text file "path". Web version: https://s3eidat.github.io/readability/

Turn titles into clean URL slugs, one slug per non-empty line (bulk). Folds accents (é → e, ß → ss), transliterates Arabic to Latin (the article al- becomes its own word) or keeps Arabic letters, converts Arabic-Indic digits, drops tashkeel, turns & into "and", can remove stop words (English and Arabic) and cap the length at a word boundary. Web version: https://s3eidat.github.io/slugify/

Check a post against platform limits the way the platforms count: X/Twitter weighted length (links = 23, emoji = 2, CJK = 2; limit 280), Threads 500, Bluesky 300, Instagram 2,200 (+ 30 hashtags), LinkedIn 3,000, Facebook 63,206, TikTok 4,000, YouTube title 100 / description 5,000, Pinterest 500, Google title ~60, meta description ~160. Characters are counted as user-perceived graphemes (one emoji = 1). Also: words, hashtags, mentions, links, emoji, and SMS encoding (GSM-7 vs Unicode) with the number of SMS parts and the characters that force Unicode. Give "text" or a text file "path". Web version: https://s3eidat.github.io/social-counter/

Count words, characters (with and without spaces), sentences, paragraphs, lines and unique words; estimate reading (238 wpm) and speaking (150 wpm) time; list the most used keywords with density. Works for English and Arabic (tashkeel ignored). Give "text" or a text file "path". Web version: https://s3eidat.github.io/word-count/

Convert a Unix timestamp (seconds, ms, µs or ns — auto-detected from the number of digits, or set "unit") or a date string to ISO 8601 (UTC and in a timezone), RFC 7231 / UTC string, local time in any IANA timezone with its offset, relative time ("3 hours ago"), day of year, ISO week, and Unix seconds/ms. A wall-clock time without an offset (e.g. "2026-10-26T14:30") is read in "timezone". Also shows the same instant in extra "zones" (world clock). No value = now. Date arithmetic is not done here. Web version: https://s3eidat.github.io/timestamp-convert/

Current (or any given) time in a list of time zones or cities: local time, date, weekday, UTC offset, difference from a home zone, day/night and working-hours flags. Plus the website's meeting planner: the 24 hours of a day in the home zone, each zone's local hour and band (work 9–17, awake 7–22, night), and the hours when everyone is in working hours. Zones: IANA ids ("Asia/Tokyo") or city names ("Mecca", "New York", "Tokyo"). Uses Node's ICU time-zone data; no network. Web version: https://s3eidat.github.io/world-clock/

Decode percent-encoded text (decodeURIComponent, or decodeURI with mode "full"). Optionally turn "+" into spaces (form encoding). Errors on malformed %-sequences. Web version: https://s3eidat.github.io/url-toolkit/

Percent-encode text for URLs, exactly like JavaScript encodeURIComponent ("component", default) or encodeURI ("full"). UTF-8 based. Web version: https://s3eidat.github.io/url-toolkit/

Split a URL into protocol, user, host, port, path, query, fragment and origin (with decoded forms), list its query parameters in order (duplicates and bare flags kept, + as space) and flag tracking parameters (utm_*, fbclid, gclid, msclkid, mc_cid, _ga, _hsenc…). Optionally returns the URL with tracking removed. A missing scheme means https://. Passwords are never echoed. Web version: https://s3eidat.github.io/url-toolkit/

Parse browser user-agent strings into browser + version, engine (Blink, WebKit, Gecko, Trident, EdgeHTML, Presto), OS + version, device type (desktop, mobile, tablet, TV, console, bot, HTTP client), vendor and model. Recognises ~50 crawlers and AI bots (Googlebot, Bingbot, GPTBot, ClaudeBot, PerplexityBot…) and HTTP clients (curl, python-requests, Go, okhttp, Postman…). Give one "userAgent", a list, or a text/log file (one per line, or the last quoted field of each access-log line); up to 5000 per call, with a count by type. Web version: https://s3eidat.github.io/ua-parser/

Validate XML (well-formedness and namespaces, with line and column for errors), pretty-print it (2, 4 spaces or tab; mixed content, CDATA and xml:space="preserve" kept exactly as written), minify it, or convert it to JSON (attributes as "@name", repeated elements as arrays, text as "#text"). Optionally removes comments. Never loads external DTDs or entities. Give "text" or a file "path". Web version: https://s3eidat.github.io/xml-format/

Run an XPath 1.0 expression on XML: node-sets (elements, attributes, text…), numbers (count(), sum()), strings and booleans. Full XPath 1.0: all axes, predicates, operators and the core function library. Namespace prefixes declared anywhere in the document can be used as-is; a default namespace on the root gets the prefix "d" (e.g. //d:book), as on the website. Each matched node comes back as XML text plus its type, name and XPath location. Web version: https://s3eidat.github.io/xml-format/

Convert YAML to JSON (YAML 1.2 core schema plus anchors/aliases, << merge keys, timestamps, multi-document files). Safe: no code tags (!!js/function, !!python… are rejected), alias bombs and recursive aliases are stopped. Several documents become a JSON array. Errors give line and column. Give "text" or a file "path". Web version: https://s3eidat.github.io/yaml-json/