QiLing Tools🧠Productivity Tools
Mind maps, kanban, whiteboard, timers, notepad, batch rename and more productivity tools.
93 tools tagged "Productivity"
🧠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.