QiLing Tools🧠Free Online Productivity Tools: Mind Map, Date Calculator, Timer, Time Zones, Barcodes, Text to Speech
Free productivity tools in your browser: QiLing Mind mind maps with XMind and Markdown import/export, date difference and age calculator, stopwatch, countdown and Pomodoro timer, world clock and time zone converter, text cleanup and bulk find & replace, random name picker and team generator, BMI calculator, barcode generator, text to speech, password generator, QR codes, word count, case conversion, line sorting, Chinese pinyin, Simplified/Traditional Chinese conversion, a chart maker, a Chinese lunar calendar, a typing test, Morse code, a spin-the-wheel picker, an online notepad, a bill splitter, day countdowns, a kanban board, flashcards, an emoji picker, invoices and receipts, a resume builder, word clouds, a password checker, speech to text, a teleprompter, a whiteboard and a habit tracker, spreadsheet, Gantt chart, flowchart maker, calendar maker, WeChat article formatter, timetable, certificate maker unit price comparison, copybooks, seating charts, envelope and label printing, business cards, styled QR codes ID number validation, batch renaming, graph and music paper, planners, word search and crossword puzzles, bingo cards, Markdown slides, an expense tracker, a decision matrix, email signatures, invitation cards, text analysis, a meeting planner, reading speed and brain tests, shift rosters, a gift ledger, document templates, a ZIP compressor and extractor, a RAR / 7Z extractor, a ZIP password tool, a tar / tar.gz packer, a large-file splitter, Excel to CSV / JSON, Word to Markdown, PowerPoint to outline and notes, TXT to EPUB, and EPUB text extraction and metadata editing. Runs locally, nothing is uploaded.
🧠QiLing MindQiLing Mind is a free online mind map editor: add nodes with Tab/Enter, drag to restructure, import and export XMind and Markdown, export PNG/SVG/PDF.🔐Password GeneratorFree online random password generator: choose length, character sets and look-alike exclusions, generate several at once with a strength meter, all locally.📱QR Code GeneratorFree online QR code generator: turn URLs, text, Wi-Fi or contact cards into QR codes with custom size, colour and error correction. Crisp PNG or vector SVG.🔡Word CounterFree online word counter: live counts of characters with and without spaces, words, CJK characters, lines, paragraphs, sentences, bytes and reading time.🔠Case ConverterFree online case and naming converter: get UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE at once.📝Lorem Ipsum GeneratorFree online Lorem Ipsum generator: classic Latin placeholder text or Chinese filler by paragraph, sentence or word, with one-click copy for mockups.↕️Sort & Dedupe TextFree online text tool: sort lines alphabetically or by length, remove duplicate and empty lines, trim whitespace, optionally ignoring case. Runs locally.✍️Sign & Stamp PDFFree online PDF signing tool: drop in a handwritten signature or company stamp, drag it into place on a page preview, adjust size and opacity, then export.📊Barcode GeneratorFree online barcode generator: Code 128 with automatic code sets, EAN-13 with its check digit and Code 39. Adjust size, quiet zone and colours; SVG or PNG.⚖️BMI CalculatorFree online BMI calculator: height and weight give your body mass index, the WHO and Chinese categories, a healthy weight range, plus BMR and daily calories.📅Date CalculatorFree online date calculator: days, weeks, months and workdays between two dates; add or subtract to find a date and its weekday; exact age and next birthday.🎲Random Name PickerFree online random name picker: draw winners with no repeats across rounds, pick students at random, split people into balanced groups or shuffle a list.🧹Text CleanerFree online text cleaner: strip extra spaces and blank lines, rejoin lines broken by a PDF copy, convert full-width ↔ half-width and CJK ↔ Latin punctuation.🔁Find and ReplaceFree online find and replace: several rules applied in order, plain text or regex, case and whole-word options, a live match count and $1 capture groups.🔊Text to SpeechFree text to speech: near-human AI voices run in your browser, unlimited, downloadable as WAV, in English and Chinese. System voices cover many more languages.⏱️Online TimerFree online timer: countdown with presets, alarm and screen flash; stopwatch with laps; Pomodoro 25/5 cycles. Big digits, accurate in background tabs.🌐Time Zone ConverterFree online time zone converter and world clock: pick a time and see it in New York, London, Tokyo, Shanghai or any city, with UTC offsets and DST handled.📊Chart MakerFree online chart maker: paste data from Excel or CSV to build bar, line, area, pie, donut and scatter charts, then download a 2× PNG or an editable SVG.🀄Chinese to PinyinFree online Chinese to pinyin converter: tone marks, numbers or none, initials only, context-aware polyphones, surname readings and ruby annotation.繁Simplified ↔ Traditional ChineseFree online Chinese converter powered by OpenCC: Simplified ↔ Traditional for Taiwan, Hong Kong or OpenCC standard, with optional Taiwan vocabulary.🖋️Signature MakerFree online e-signature tool: photograph a handwritten signature for a clean transparent PNG with paper and shadows removed, or draw one and export PNG or SVG.🗓️Chinese Lunar CalendarFree Chinese lunar calendar for 1900–2100: lunar dates, zodiac, stem-branch years, the 24 solar terms with exact times, festivals and a lunar date converter.📡Morse Code TranslatorFree online Morse code translator: text to Morse and back, played as audio with adjustable WPM and tone, a flashing light, a WAV download, and space-bar keying.🗒️Online NotepadFree online notepad that autosaves in your browser: several notes, search, rename, undo delete, word count, Markdown preview, TXT/MD export and focus mode.⌨️Typing Speed TestFree online typing test: WPM, CPM and accuracy over 30s, 60s, 120s or a full passage, with live error highlighting, a speed chart and personal bests.🎡Spin the WheelFree online spinning wheel: add weighted options, spin with a tick sound, see the history, remove winners, use presets, and share a wheel by link.⏳Days Until / Days SinceFree online days-until and days-since counter: add exams, holidays and anniversaries and see a live count to the second, with repeats and a share link.😀Emoji PickerFree online emoji picker: 1,100+ emoji in nine groups, searchable in English and Chinese — click to copy, pick a skin tone, see code points and shortcodes.🃏FlashcardsFree online flashcards with SM-2 spaced repetition: grade each card Again, Hard, Good or Easy; several decks, CSV and Anki import, saved in your browser.📌Kanban BoardFree online Kanban board: several boards with custom columns, cards with labels, due dates and checklists, drag and drop or keyboard moves, autosaved locally.💸Split BillFree online bill splitter for trips and dinners: add people and expenses, split equally, by share or by amount, and settle with the fewest transfers.🖊️Annotate PDFFree online PDF annotator: highlight, draw, add shapes, arrows, sticky notes and text boxes, then save as editable annotations or flatten them. Runs locally.💴Invoice & Quote GeneratorMake invoices, quotes, receipts and proforma invoices online: line items with discounts and tax, automatic totals, logo and signature, 3 templates, PDF.🛡️Password Strength CheckerTest password strength privately in your browser: entropy and crack time, detects common passwords, keyboard walks, dates and l33t, optional breach check.👔Resume BuilderBuild a resume or CV online: photo, experience, education, skills and custom sections you can reorder, 4 templates, live A4 preview with page breaks, PDF.☁️Word Cloud GeneratorFree word cloud maker: paste text or open a file, word counts with stopword removal, editable frequency table, heart, star or image shapes, PNG and SVG.☑️Create PDF FormMake any PDF fillable: draw text fields, checkboxes, radio buttons, dropdowns, date and signature fields; set names, required flags and tab order. Free, local.🌱Habit TrackerFree habit tracker: daily or weekly goals, one-tap check-ins, current and best streaks, monthly calendar, yearly heatmap, stats, notes and JSON/CSV export.🗣️Speech to TextFree online speech to text: talk into your mic for live transcription in 20+ languages with timestamps, auto punctuation, editing and TXT or SRT export.🎥TeleprompterFree online teleprompter: your script scrolls at your WPM pace. Set font size, spacing and colors, mirror for beam-splitter glass, count down, go full screen.🧑🏫Online WhiteboardFree online whiteboard: infinite canvas, pressure-aware pen, highlighter, eraser, shapes, arrows, text and sticky notes, undo/redo, pages and PNG/SVG export.📆Calendar MakerFree printable calendar maker: a year on one page or a page per month, with holidays, week numbers, events, monthly photos and themes. Print or export PNG.⛓️Flowchart MakerFree flowchart maker: describe nodes and links in plain text (Mermaid flowchart syntax) for an auto-laid-out diagram with shapes and themes. SVG/PNG export.🚧Gantt Chart MakerFree online Gantt chart maker: tasks with dates or durations, progress, milestones and dependencies, working days, drag to reschedule, PNG/SVG/CSV export.▦Online SpreadsheetFree online spreadsheet and CSV editor: SUM, AVERAGE and IF formulas with auto-recalc, sort, filter, find & replace, Excel copy-paste, CSV/TSV/JSON export.🏹Screenshot AnnotatorFree screenshot annotator: paste with Ctrl+V, add arrows, boxes, numbered steps, highlighter and text, pixelate or blur secrets, crop, copy or save PNG/JPG.🏅Certificate MakerMake award certificates in bulk: classic, gold, modern and simple templates, a pasted list of names, {name}/{award} placeholders, seal, PDF or PNG ZIP.🏫Class Timetable MakerMake a class timetable online: Mon–Fri to Mon–Sun, periods with times, auto colors, quick fill, merged double periods, A4 landscape print, PNG, CSV and JSON.🛒Unit Price CalculatorCompare products by unit price: per oz, lb, kg, L, item or sheet, with % off, spend-and-save, second-item discounts and buy-N-get-M deals. Finds the best value.🗞️WeChat Article FormatterTurn Markdown into WeChat Official Account articles: 8 themes, code highlighting, tables, nested lists, links as footnotes, one-click copy that keeps styles.📛Business Card MakerDesign business cards: 9 front/back templates, US, EU, China and Japan sizes, logo, colors, vCard QR code, print-ready PDF with 3 mm bleed and crop marks.📓Handwriting Practice Sheet MakerMake printable handwriting sheets: Chinese tian/mi grids, pinyin grids, manuscript paper, English four-line paper, tracing or model-and-trace, PDF or PNG.🔰Chinese ID Number ValidatorValidate Chinese ID numbers (GB 11643-1999): check digit, birth date, region, gender, age, zodiac; 15-to-18 upgrade; batch check with CSV. Runs locally.✉️Envelope & Address Label PrinterPrint envelopes (DL, C5, C6, US #10, Chinese with postcode boxes) and A4/Letter label sheets (L7160, L7163, L7651, 5160) from CSV with {field} templates.🔮QR Code Art GeneratorFree styled QR code maker for URLs, Wi-Fi, vCards, email, SMS and maps: dot or diamond modules, custom eyes, gradients, logo, PNG/SVG/JPG and a scan check.💺Seating Chart MakerMake classroom, U-shape, round-table or conference seating charts: seeded random, by height, boy–girl, keep-apart/together rules, locks, rotation, print.🗄️Batch File RenamerFree bulk file renamer: find & replace with regex, prefixes, numbering, case, EXIF photo date, extensions. Live preview, conflict checks, ZIP or rename script.🎱Bingo Card GeneratorMake printable bingo cards: 75-ball B-I-N-G-O, UK 90-ball tickets or custom word and emoji bingo, all unique, 1–6 per page, with a call sheet and caller.▤Graph Paper GeneratorMake printable paper: square grid, dot, isometric, hex, polar, log, engineering, music staff, guitar tab, Cornell notes, lined and calligraphy as vector PDF.📒Printable Planner MakerPrintable planner pages: daily, weekly, monthly, year at a glance, habit tracker, to-do, meal plan, budget and reading log, with auto dates for a month or year.🧐Word Search & Crossword MakerMake printable word search and crossword puzzles from your words and clues: diagonal and backwards words, compact numbered crosswords, answer keys, seeds.👯Duplicate Photo FinderFind duplicate and similar photos in your browser: SHA-256 for identical files, perceptual hashes for resized or recompressed copies; keep the best, export CSV.🤔Decision MatrixWeighted decision matrix online: score options against criteria, set weights directly or by AHP pairwise comparison with CR, rank and test sensitivity.🪙Expense TrackerFree private expense tracker: categories, accounts, tags, currencies, monthly budgets, pie, trend and heatmap reports, recurring bills, CSV import. Stays local.🎪Markdown SlidesWrite slides in Markdown: --- splits slides, 9 themes, 16:9 or 4:3, code highlighting, columns, backgrounds, fragments, presenter view, PDF and HTML export.📬PDF Form Mail MergeFill a PDF form from CSV rows: auto-matched fields, checkboxes, radios, dropdowns, CJK text, optional flattening, one PDF per row or combined; export form data.📧Email Signature GeneratorCreate a professional HTML email signature: 8 templates, photo or logo, social icons, CTA banner and disclaimer, table-based for Gmail, Outlook and Apple Mail.💒Invitation & Greeting Card MakerMake invitations and greeting cards for weddings, birthdays, baby showers, parties and holidays: 12 templates, QR codes, one card per guest, PNG or PDF.📙Text AnalyzerAnalyze text in depth: word and character frequency, n-grams, SEO keyword density, Flesch, Fog and SMOG scores, sentence lengths, MTLD and repeated phrases.💡Brain TestsFree quick brain tests: reaction time, sequence, number, verbal and visual memory, aim trainer, chimp test, Stroop test and Schulte tables, with personal bests.🤝Meeting PlannerFind a meeting time across time zones: add cities and working hours, see overlaps on a 24-hour timeline, get best-time picks and export .ics or Google Calendar.👓Reading Speed TestTest your reading speed: original English and Chinese passages at three levels, a comprehension quiz, effective WPM vs. average, plus an RSVP speed reader.📤Rename PDFs by ContentBatch rename PDFs by content: put dates, invoice or order numbers, emails, totals, titles or labelled text into a name pattern; preview clashes.📩Letter & Document TemplatesFree fill-in templates: leave request, receipt, IOU, employment verification, authorization and resignation letters, plus Chinese formats. Print, PDF or copy.🎁Gift LedgerFree private gift ledger: log wedding, shower and birthday gifts received and given, see each person’s balance, get return-gift ideas and print a list.👷Shift Schedule MakerFree shift scheduler: set staff, shifts and daily headcount, then auto-build a fair roster that respects rest and weekly-off rules. Rotations, print, CSV.🗜️ZIP CompressorFree online ZIP tool: pack files or a whole folder into one zip, pick a compression level and optionally protect it with AES-256, all inside your browser.📦Unzip OnlineFree online zip extractor: open a zip with nothing installed, browse and preview what is inside, extract only what you need, use a password, fix garbled names.🔐ZIP PasswordFree online tool to password-protect a zip or strip the password from one you can open: AES-256 or ZipCrypto, with garbled filenames repaired on the way.🗃️RAR / 7Z ExtractorFree online extractor for RAR, 7Z, TAR, TAR.GZ, TAR.XZ, TAR.BZ2, CAB, ISO and more: browse the contents, preview files and extract what you need without WinRAR.🗄️TAR ArchiverFree online tar tool: pack files or a whole folder into .tar or .tar.gz with the folder structure intact, built in your browser and never uploaded.✂️Split / Join FilesFree online file splitter: cut a big file into .001 .002 parts by size or count to fit an attachment limit, and join the parts back together. Runs locally.📊Excel ConverterFree online Excel converter: open an xlsx, read every worksheet and export it as CSV, TSV, JSON, a Markdown table or HTML. Date serial numbers become dates.📝Word ConverterFree online Word converter: read headings, lists, tables, images and footnotes out of a docx and export Markdown, single-file HTML or plain text.📽️PowerPoint ConverterFree online PowerPoint converter: read each slide's title, bullet levels, tables, images and speaker notes out of a pptx and export Markdown, text or notes.📗TXT to EPUBFree online TXT to EPUB converter: chapters are detected to build the table of contents, legacy encodings are repaired, and you can add a cover and author.📖EPUB ConverterFree online EPUB converter: read the whole book in reading order and export Markdown, plain text or a single-file HTML page, or print it to PDF. Parsed locally.🏷️EPUB Metadata EditorFree online EPUB metadata editor: change the title, author, language, publisher, description and subjects, replace the cover and repack a valid EPUB.📡Peer-to-peer sendFree peer-to-peer file transfer: scan one QR code to pair a phone and a computer, then files go straight between them — no upload and no size limit.🧾OFD viewerFree online OFD viewer: open the .ofd files used by Chinese e-invoices and official documents, convert them to searchable PDF or PNG, and extract the text.📱China Phone Number CheckFree checker for Chinese mobile numbers: validate the format, identify the carrier by prefix, flag MVNO, IoT and satellite ranges, and export them as CSV.🗓️ICS Calendar FileFree online ICS generator: build .ics files with times, location, recurrence and alarms for Apple Calendar, Outlook or Google, or read an .ics someone sent you.🔴Seal ExtractorFree online seal extractor: lift a red or blue stamp off a scan into a transparent PNG, dropping paper, tint and specks. Solid colour, auto-trim, runs locally.