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Browse every published tool, grouped by category.

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71 tools

Images & Media

  • Image Compressor

    Compress JPG, PNG, and WebP images to a target file size—batch-friendly, in your browser.

  • HEIC Converter

    Convert iPhone HEIC photos to JPG or PNG in your browser. Fast, private, and serverless.

  • Image Resizer

    Resize images by width, height, long edge, or percentage. Batch resize directly in your browser.

  • Image Cropper

    Crop images freely or with fixed aspect ratios. Fast and private visual cropping directly in your browser.

  • Image to PDF

    Convert JPG, PNG, and WebP images into a single clean PDF. Customize page size, orientation, margins, and layout entirely in your browser.

  • Screen Recorder & Capture

    Record your screen, window, or tab directly in your browser with optional microphone and webcam overlay. Fully local processing with instant screenshot capture.

  • Subtitle & Caption Studio

    100% client-side subtitle studio with zero server upload. Parse, edit, timeline-sync, quality-inspect, preview with local video, compare track diffs, and convert between SRT, WebVTT, ASS, SSA, SBV, JSON, CSV, Markdown, and PDF audit reports.

  • Image Metadata & EXIF Inspector

    Inspect EXIF, GPS, and camera metadata in JPEG, PNG, and WebP locally in your browser, then clean and verify—without uploading files.

  • Image Converter

    Convert between WebP, JPG and PNG. Only the format changes, the resolution stays as is.

  • Video Inspector & Analysis Studio

    Private client-side video inspection, metadata analysis, frame extraction, quality diagnostics, and local video utilities.

  • ID Photo & Print Studio

    Create passport, visa, resume, and ID photos from smartphone pictures with multi-layout sheet printing. 100% private in-browser.

Documents & Files

  • PDF Page Numberer

    Add page numbers to each page of a PDF. Set position, format, start number, and more—then create a new PDF in your browser.

  • Merge & Organize PDF

    Combine multiple PDFs and images into one PDF. Reorder files and delete or rotate pages, right in your browser.

  • Split & Extract PDF

    Extract specific pages or split PDFs page-by-page, every N pages, or by maximum file size.

  • Compress PDF

    Reduce PDF file size securely in your browser with customizable quality presets.

  • PDF to Image

    Convert PDF pages into high-quality JPG, PNG, or WebP images with customizable DPI and quality.

  • PDF Metadata Inspector & Cleaner

    Inspect and remove supported document metadata such as author, creator, and dates directly in your browser. Processed locally without server uploads.

  • Archive Inspector & Extractor Studio

    100% client-side archive inspector & extractor with zero upload. Inspect ZIP, ZIP64, password-protected ZIP (ZipCrypto & WinZip AES), TAR, and GZ. Analyze structure, verify integrity, guard against Zip bombs and path traversal, preview, extract safely, create clean ZIPs, and export audit reports.

  • Bulk File Renamer / File Naming Studio

    100% client-side file batch renaming with zero uploads. Preview all changes in real-time, inspect collisions, Windows reserved names, and invalid characters before execution. Apply sequential numbering, regex, and export via Safe ZIP or Direct In-Place Rename.

  • Spreadsheet Workbook Inspector & Repair Studio

    Audit XLSX/XLSM internal structure, formula errors, hidden sheets/rows, external links, and privacy metadata entirely in-browser, generating safe clean and repair copies.

  • Document OCR & Searchable PDF Studio

    Extract text from images and scanned PDFs entirely in-browser. Generate searchable PDFs with invisible text layers, review and correct OCR bounding boxes, and export to TXT, JSON, CSV, and PDF.

  • PDF Redactor & Sanitizer

    Detect sensitive patterns in PDFs locally, apply irreversible redaction, and optional metadata sanitization before sharing—privacy-first, no server uploads.

Productivity

  • Time Zone Meeting Planner

    Compare local times around the world and find practical meeting times across time zones with DST and date difference calculations.

  • Presentation & Slide Studio

    Create, design, and present slides entirely in your browser with zero account or cloud upload. Export directly to editable PPTX, vector PDF, PNG, SVG, and JSON.

  • Event & Tournament Studio

    Participant management, fair draw, team balancing, tournament brackets, round robin, standings, and scheduling — 100% client-side, zero upload.

  • Shift & Roster Studio

    Auto-generate practical shift schedules from staff, availability, headcount, and rules — with problem explanations and auto-fix preview. Zero upload.

  • Flashcard & Spaced Repetition Studio

    From paste to cards, spaced repetition study, quizzes, weak-point analytics, and print. No signup, zero upload.

  • Mind Map & Concept Tree Studio

    Structure thoughts, Markdown, meeting notes & study topics instantly. Outline editing, smart layouts, SVG/PNG export. Zero-upload, browser-only.

  • ICS Calendar Studio

    Create, edit, validate, merge, split, and convert ICS/iCalendar files in your browser. Zero-upload — your calendar stays local.

  • Resume & CV Studio

    Build resumes and CVs in your browser — create, edit, check formatting, export PDF. Zero-upload, private, free.

  • Reading Assistant Studio

    Customize font size, line spacing, reading ruler, visual focus modes, and synchronized text-to-speech. 100% private, client-side reading studio.

  • Typing & Keyboard Skills Studio

    PC keyboard, English, programming code, and mobile flick training. Zero-upload typing speed test, weak-key diagnostics, and adaptive practice.

Life & Home

  • Unit & Measurement Converter Studio

    100% client-side unit conversion with zero server tracking. Convert length, mass, temperature, data, fuel economy, pressure, and 18 dimensions with exact SI/IEC factors, calculation traces, significant figures, fractions, batch CSV, and PDF export.

  • Recipe Scaler Studio

    Scale servings and ingredient amounts. Paste recipes, convert measures, build a shopping list — in your browser.

  • Travel Packing & Trip Planner

    Travel packing list, pre-trip checklist, and luggage estimates — in your browser, no upload.

  • Workout Interval Studio

    Build, run, customize, save, and export interval workouts from Tabata to EMOM and circuits. Zero upload, no signup, 100% browser-local.

  • Printable Learning & Paper Studio

    Daily practice worksheets, graph paper, handwriting grids, math drills, and mazes right in your browser. 100% client-side, zero upload.

  • Home & DIY Project Studio

    Estimate paint, flooring, tile, and more with waste, purchase units, budget, and shopping list — no signup, zero upload.

  • Disaster Preparedness & Emergency Planning Studio

    Calculate emergency water, food, power, go-bags, and printable PDFs based on your household. 100% in-browser, Zero-Upload.

  • Family & Life Management Studio

    Manage family schedules, tasks, school routines, packing checklists, deadlines, and emergency cards in your browser. Zero-Upload, no account needed.

  • Room Layout & Furniture Fit Studio

    Verify furniture fit, door clearances, passageway widths, and circulation lines before buying or moving. 100% private, Zero-Upload.

  • Moving & New Life Studio

    Moving checklist, packing, box estimates, procedures, moving-day flow, and new-home setup in your browser. Zero-Upload, no sign-up, printable box labels.

  • Garden & Vegetable Planning Studio

    Generate custom annual crop calendars, planting dates, soil volume, plant count, and monthly task checklists. Zero-Upload, no account needed.

  • Nutrition & Meal Planning Studio

    Calorie and macro calculator, weekly meal planner, grocery list, food cost, pantry tracking, and recipe nutrition. Zero upload, no signup, 100% browser-local.

Finance

  • Invoice & Quote Generator

    Create professional invoices and quotes directly in your browser. Features accurate tax and discount calculations, custom branding, live preview, multi-page PDF generation, and CSV/JSON export.

  • Financial Scenario Planner

    Simulate and compare multiple loan repayment, prepayment, cash flow, and savings scenarios side by side with amortization schedules, SVG charts, and CSV/JSON/PDF export entirely in your browser.

  • Bill Split & Expense Settlement Studio

    See who owes whom after shared expenses. Free bill splitter with settlement transfers — no signup, zero upload.

  • Personal Budget Studio

    Build this month’s budget in minutes. Track income, expenses, savings goals, and scenarios — no signup, zero upload.

  • Car Ownership & Commute Cost Studio

    Estimate annual ownership cost, cost per km, TCO, A/B compare, commute vs transit, and replacement — fully in-browser, zero upload.

  • Salary & Take-Home Pay Studio

    Estimate take-home from gross salary. Compare overtime, short hours, job offers, and effective hourly pay — fully in-browser, zero upload.

Creative

  • 2D Code Generator

    Create high-readability 2D codes (QR codes) for URLs, Wi-Fi, vCards, and text. Supports logos, colors, and in-browser scan verification.

  • Color Accessibility & Palette Studio

    Create accessible color palettes from scratch or images. Check WCAG 2.2 contrast, generate correction candidates, simulate color vision deficiency, and export to CSS, Tailwind, or JSON.

  • Font & Typography Inspector Studio

    100% client-side font and typography inspector with zero upload. Inspect TTF, OTF, WOFF, and WOFF2 metadata, glyph outlines, Unicode and language coverage, OpenType features, variable font axes, side-by-side comparison, and CSS @font-face generation.

  • Image Color Palette Studio

    Extract design-ready color palettes from images. Copy HEX, build gradients and CSS variables, export PNG/SVG/JSON — all in your browser.

  • Photo Exposure & Depth of Field Studio

    Depth of field, hyperfocal distance, exposure triangle, ND filter and crop factor calculators in one studio — no signup, zero upload.

  • Handmade Craft & Pricing Studio

    Calculate craft material cost, effective hourly wage, profit margins, fabric yardage, and printable tags — Zero-Upload.

Audio & Music

  • Instrument Tuner & Metronome Studio

    All-in-one chromatic tuner, ultra-precise metronome, reference tone generator, tempo trainer, and practice timer for guitar, bass, ukulele, strings, and winds. 100% in-browser with zero microphone uploads.

Developer & Technical

  • Text Compare & Diff

    Compare two texts, documents, code snippets, or JSON with line, word, or character diff. Includes JSON Semantic Diff.

  • File & Text Encryptor

    Encrypt files and text directly in your browser with AES-256-GCM. Passwords and data are never sent to any server.

  • 3D Model Inspector & 3D Print Checker

    Inspect STL, OBJ, PLY, and GLB models in your browser. Analyze dimensions, mesh watertightness, non-manifold edges, overhangs, and 3D print readiness completely locally.

  • Data Quality & Visualization Studio

    Profile data quality, detect missing values and duplicates, clean, filter, analyze statistics, create pivot tables, and render 15 accessible chart types entirely in your browser.

  • Email Header Forensics & Authentication Inspector

    100% client-side email header forensics with zero server upload. Inspect Received delivery hops, reported SPF/DKIM/DMARC/ARC results, identity alignment, anomaly patterns, and privacy redaction with clear evidence.

  • Input Device Diagnostics Studio

    100% client-side input diagnostics with zero server tracking. Observe, visualize, and record Keyboard (key, code, rollover, chatter), Mouse (clicks, CPS, wheel, movement), Touch (multitouch, gestures), and Gamepad (buttons, triggers, stick drift, dead zones) with JSON, CSV, Markdown, and PDF audit reports.

  • HAR Forensics & Network Performance Studio

    100% client-side network forensics and performance analyzer with zero uploads. Inspect HAR files, visualize waterfall timings, diagnose slow requests, audit security headers (CSP, HSTS, CORS), detect sensitive tokens, sanitize/redact private data, and compare HAR archives.

  • Audio & Loudness Inspector Studio

    100% client-side audio forensics and loudness inspection with zero uploads. Analyze WAV/MP3/FLAC, inspect high-res waveforms, FFT spectrum, spectrogram, ITU-R BS.1770-5 LUFS loudness, True Peak, RMS, clipping, silence detection, stereo phase correlation, and synchronized A/B comparison.

  • Certificate & PKI Inspector

    Decode X.509 certificates and CSRs (PEM/DER) in your browser with zero uploads. Check expiry, SAN hostname coverage, chain order, key and signature algorithms, and CSR-to-certificate key match; export reports and OpenSSL commands.

  • Binary Inspector Studio

    Zero server uploads. Comprehensive static binary forensics: magic number detection, extension mismatch checks, Hex viewer, string extraction, Shannon entropy graph, executable parsing (PE/ELF/WASM), embedded signatures, and binary diff.

  • Geo Inspector & Privacy Studio

    Zero server uploads, 100% browser-local. Inspect, visualize, validate, and sanitize GeoJSON, GPX, KML, TopoJSON, and CSV. Features vector map, elevation profiles, geodesic metrics, geofence privacy masking, simplification, and conversion.

  • Gerber & PCB Manufacturing Inspector

    Zero server uploads, 100% browser-local. Inspect, visualize, and validate Gerber RS-274X/X2, Excellon drills, and Job files. Features multi-layer overlay, outline check, clearance estimation, Rev comparison, and metadata sanitization.

  • Writing & Text Analyzer Studio

    Character & word counter, sentence structure, readability analysis, writing limit checker, and proofreading — fully in browser, zero upload.

  • Math & STEM Studio

    Client-side STEM workbench for function graphing, equation solving, geometry, statistical regression, probability, and calculus. Zero upload.