Convert

Guide to converting between PDF, Word, Excel, PowerPoint, Markdown, HTML and images.

All guides

Getting started: What OpenFile is, how to use your first tool, install it as an app and work offline.
How OpenFile works: The zero-upload privacy architecture, the processing engines and first-use model downloads.
Keyboard shortcuts: Global, command palette, docs and Sketch board keyboard shortcuts.
PDF tools: Guide to every PDF tool: merge, split, compress, sign, protect, OCR and more.
Convert: Guide to converting between PDF, Word, Excel, PowerPoint, Markdown, HTML and images.
Image tools: Guide to compressing, resizing, converting, background removal, upscaling and editing images.
Video tools: Guide to trimming, compressing, converting, GIFs and recording video in the browser.
Audio tools: Guide to editing, converting, recording and transcribing audio on-device.
Developer tools: Guide to JSON, JWT, hashes, regex, QR codes, cURL conversion and other developer utilities.
Text & data tools: Guide to diffing, counting, case conversion, Markdown and text cleanup tools.
Design tools: Guide to colors, gradients, CSS, favicons, SVG and the Sketch whiteboard.
Workspace pipelines: Chain steps into reusable recipes and batch-process hundreds of images or PDFs.
Sketch board: The infinite whiteboard: tools, boards, sharing, presenting, exporting and shortcuts.
Favorites, history & settings: How favorites, recent tools, activity history and settings are stored locally in IndexedDB.
Self-hosting: Deploy OpenFile to Vercel, GitHub Pages, any static host or Docker with nginx.
API reference: The optional Vercel serverless routes: /api/health, /api/fetch-page and /api/meta.
Browser support: Which browsers and platform features each group of tools needs.
FAQ: Answers to common questions about privacy, limits, offline use and troubleshooting.
Contributing & adding a tool: Set up the project, follow the tool conventions and add a new tool to the registry.
Changelog: Release notes for every OpenFile version.
Install on every device: Install OpenFile as a web app, a desktop app for Windows, macOS and Linux, an Android APK or on iPhone.
Using tools: Drop zones, batches, page ranges, presets, history, undo and where your downloads go.
Themes and accessibility: Black, dark, light and system themes, accent colors, fonts, density, reduced motion and keyboard use.
Offline and PWA: How the service worker caches the app, engines and models, how updates work and how to clear data.
Open with and share target: Open files from your system with OpenFile and send files to it from the share sheet.
Local AI: Which AI models run on your device, their sizes, first-run downloads, WebGPU or CPU, cancelling and privacy.
Privacy and security: No uploads, how to verify it yourself in the DevTools network tab, headers and what is stored locally.
Formats supported: A searchable matrix of every input and output format, generated from the tool registry.
Full tools reference: Every tool with its description, formats and link, generated from the registry. Filter and search.
Troubleshooting: Large files, memory, browser support, Safari quirks, unsigned app warnings and quick fixes.
Developer guide: Architecture, adding a tool, batch files, tests, builds, Pages and Vercel base paths and releasing the apps.
Roadmap: What has shipped and what comes next, generated from the project roadmap.
Data: Guide to every Data tool: csv, excel, json, sqlite, parquet, maps and gps.
AI: Guide to every AI tool: on-device ai for images, text and documents.
3D: Guide to every 3D tool: view and convert glb, gltf, obj, stl, ply and more.
Archives: Guide to every Archives tool: open and create zip, 7z, tar, gz and rar.
eBooks: Guide to every eBooks tool: read and convert epub, mobi, fb2 and comics.
Fonts: Guide to every Fonts tool: convert, inspect and subset ttf, otf, woff.
CAD: Guide to every CAD tool: view and convert dxf and other drawings.
Subtitles: Guide to every Subtitles tool: convert, sync and edit srt, vtt, ass.
Security & Privacy: Guide to every Security & Privacy tool: scrub metadata, lock files, hide messages, redact personal data.
Maps & GPS: Guide to every Maps & GPS tool: gpx elevation, splits, heatmaps, privacy zones and location codes.
Office & Sheets: Guide to every Office & Sheets tool: merge, split, compare and pivot spreadsheets, clean word files.
Science & Education: Guide to every Science & Education tool: equations, graphs, chemistry, matrices, logic and primes.
Creator Studio: Guide to every Creator Studio tool: audiograms, vertical video, carousels, word clouds and chapters.

Tools

PDF to Image: Export PDF pages as crisp PNG, JPG or WEBP at any DPI.
Image to PDF: Combine JPG, PNG and WEBP into one PDF with page-size controls.
PDF to Text: Extract text from every page, with layout-aware ordering.
PDF to Word: Convert PDF text into an editable DOCX document.
Word to PDF: Turn DOCX files into well-formatted PDFs.
PDF to PowerPoint: Turn each PDF page into a slide in a PPTX deck.
Excel to PDF: Render XLSX/CSV sheets as clean paginated PDF tables.
PDF to Excel: Pull tabular text from PDFs into an XLSX spreadsheet.
Markdown to PDF: Write Markdown with a live preview and export a beautiful PDF.
HTML to PDF: Paste HTML or a URL and convert it into a PDF.
Text to PDF: Turn plain text into a paginated PDF with fonts and margins.
HEIC Converter: Convert Apple HEIC/HEIF photos to JPG, PNG or WEBP.
CSV & Excel Converter: Convert CSV, XLSX, JSON, Markdown, TSV, HTML and SQL both ways.
EPUB to PDF: Convert e-books into printable PDFs.
PDF to Markdown: Turn PDF text into clean Markdown with headings, lists, bold and italic text, and tables.
PDF to HTML: Convert a PDF into a clean responsive web page, or an exact-looking page with selectable text.
PDF to EPUB: Make a reflowable EPUB e-book from a PDF, with chapters, a contents list and a cover.
PDF to RTF: Convert PDF text into an RTF document with paragraphs, headings, lists, tables and images kept.
PDF to ODT / ODS / ODP: Convert a PDF to OpenDocument text, spreadsheet or presentation for LibreOffice and friends.
PDF to TIFF: Export PDF pages as a multi-page TIFF in color, grayscale or black and white, with LZW or ZIP compression.
SVG to PDF: Convert SVG graphics to a vector PDF, one page per file, at their own size or on A4 or Letter.
ZIP to PDF: Turn every image, PDF and text file inside a ZIP into one PDF, in the order you choose.
PDF to SVG: Turn PDF pages into SVG files with sharp vector shapes, real text and the original fonts, ready to edit.
PowerPoint to PDF: Convert PPTX slides to PDF in your browser, as slides, slides with speaker notes, or handouts.
XPS to PDF: Convert XPS and OXPS documents to PDF, PNG or SVG, with searchable text, right in your browser.
Document Converter: Convert DOCX, ODT, RTF, Markdown, HTML, TXT and EPUB to Word, PDF, Markdown, HTML, TXT, RTF or EPUB.
Office Viewer: View Word, Excel and PowerPoint files (DOCX, XLSX, XLS, ODS, CSV, PPTX), plus ODT and RTF, without converting.
Markdown to Word: Turn Markdown into a real Word document with headings, lists, tables, links and code.
Word to Markdown: Convert DOCX to clean Markdown with headings, lists, links and tables.
RTF Viewer and Converter: Open RTF files (with tables and WMF or EMF pictures) and convert them to PDF, Word, HTML or text.
Email Viewer (EML, MSG, MBOX): Open EML, Outlook MSG and MBOX files, save attachments and export messages as PDF.