# Vault Studio Pro > Vault Studio Pro is a private office suite that runs in the browser: editors for .docx documents, .xlsx spreadsheets and .pptx presentations, a PDF editor with redaction and English OCR, an image editor, and AES-256-GCM encrypted .vault files. Files are processed on the user's device rather than uploaded, and no account is needed. Key facts: - Document processing happens in the browser. The site's Content-Security-Policy only allows network connections to vaultstudiopro.com. - The only calls to the server are claiming a license key after checkout and refreshing a subscription key. Neither contains documents. - No accounts, no ads, no analytics or tracking cookies. Projects are stored in the browser (IndexedDB and localStorage) and are not encrypted at rest; exported .vault files are encrypted. - Every editor is free. Pro (Week Pass, Pro Monthly, Pro Annual, Founders, Lifetime) adds OCR on every page, larger PDF Tools batches and revision history, with a 7-day free trial and no card required. Current prices: https://vaultstudiopro.com/pricing - Contact: support@vaultstudiopro.com - Open the app: https://vaultstudiopro.com/app/ ## Tools - [Document editor (.docx)](https://vaultstudiopro.com/docx-editor): Open, edit and save .docx documents in your browser. Comments, track changes, tables and .docx export, with your file processed on your device, never uploaded. - [Spreadsheet editor (.xlsx)](https://vaultstudiopro.com/xlsx-editor): Open .xlsx, .xls and .csv files, use 70+ formula functions, charts and pivot tables, and save .xlsx. Everything runs in your browser; your data stays on your device. - [Presentation editor (.pptx)](https://vaultstudiopro.com/pptx-editor): Import .pptx decks, edit slides, present full screen with notes, and export .pptx. Runs in your browser; see exactly what the importer simplifies. - [PDF editor](https://vaultstudiopro.com/pdf-editor): Annotate, sign, fill forms, OCR, merge, split and compress PDFs in your browser. Files are processed on your device, not uploaded to a server. - [Image Studio](https://vaultstudiopro.com/image-editor): Crop, rotate, adjust, black out details and convert images to WebP, JPEG or PNG in your browser. Your photos and screenshots stay on your device. - [Redact a PDF](https://vaultstudiopro.com/redact-pdf): Free PDF redaction that burns black boxes into the page so hidden text is removed, not just covered. Runs in your browser; the unredacted file is never uploaded. - [Encrypt a file (File Safe)](https://vaultstudiopro.com/encrypt-file): Lock any file in a password-protected .vault using AES-256-GCM and PBKDF2, entirely in your browser. Free, no upload, no account. ## Use cases - [All use cases](https://vaultstudiopro.com/use-cases): How lawyers, healthcare admin staff, accountants, journalists and schools use an in-browser office suite, with step-by-step workflows and honest limits. - [For legal work](https://vaultstudiopro.com/for-legal): For lawyers and paralegals: PDF redaction that removes the text, .docx editing without uploads, OCR of scans and encrypted handoff. Plus what it does not do. - [For healthcare admin](https://vaultstudiopro.com/for-healthcare): For healthcare admin and billing staff: redact PDFs and fill forms in the browser without uploads. Not HIPAA certified and no BAA; read the limits first. - [For accountants and bookkeepers](https://vaultstudiopro.com/for-finance): For accountants and tax preparers: edit .xlsx files, pull tables from PDFs, redact account numbers and send encrypted files, without uploading client data. - [For journalists](https://vaultstudiopro.com/for-journalists): For journalists: open, redact, OCR and encrypt documents in the browser, offline if you like, with no uploads. Includes the PDF metadata and dictation caveats. - [For students and teachers](https://vaultstudiopro.com/for-education): Free document, spreadsheet, slide and PDF editors that run in the browser on Chromebooks and school PCs. No installs, no accounts, and student work stays local. ## Compare - [All comparisons](https://vaultstudiopro.com/compare): Honest, sourced comparisons of Vault Studio Pro with Adobe Acrobat, Microsoft 365, Google Docs, LibreOffice, Proton Docs, CryptPad and ONLYOFFICE. - [vs Adobe Acrobat](https://vaultstudiopro.com/vs/adobe-acrobat): Acrobat vs Vault Studio Pro for PDF editing, redaction, OCR and signatures: where files are processed, accounts, prices, and when Acrobat is the better choice. - [vs Microsoft 365](https://vaultstudiopro.com/vs/microsoft-365): Microsoft 365 vs Vault Studio Pro for .docx, .xlsx and .pptx files: accounts, cloud storage, offline use, Excel depth, prices, and when to pick Microsoft. - [vs Google Docs](https://vaultstudiopro.com/vs/google-docs): Google Docs vs Vault Studio Pro: cloud collaboration or on-device editing. Accounts, offline use, Office files, redaction, prices and who should pick which. - [vs LibreOffice](https://vaultstudiopro.com/vs/libreoffice): LibreOffice vs Vault Studio Pro: a free desktop suite or a no-install browser suite. Formats, redaction, macros, signatures, offline use, and when to pick each. - [vs Proton, CryptPad, ONLYOFFICE](https://vaultstudiopro.com/vs/private-office-suites): Proton Docs, CryptPad, ONLYOFFICE and Vault Studio Pro compared: encrypted cloud, desktop or on-device. Accounts, offline use, formats, redaction, prices. ## Product - [Home](https://vaultstudiopro.com/): Edit documents, spreadsheets, presentations, PDFs and images in your browser. Files are processed on your device, not uploaded. No account needed. - [Pricing](https://vaultstudiopro.com/pricing): Free document, spreadsheet, slide, PDF and image editors. Pro: $9 week pass, $15/month, $99/year, or $299 lifetime. Keep the Pro features you paid for. - [Security](https://vaultstudiopro.com/security): How Vault Studio Pro processes files in your browser, how its Content-Security-Policy blocks other sites, which two license calls reach our server, and the limits. ## Resources - [Blog](https://vaultstudiopro.com/blog): Practical guides from the Vault Studio Pro Research Team on redacting PDFs, encrypting files, OCR and editing .docx and .pptx files without uploading them. - [How to redact a PDF](https://vaultstudiopro.com/blog/how-to-redact-a-pdf-properly): Why black boxes, highlighting and cropping leave text in a PDF, what true redaction removes, and how to redact and check a PDF yourself, step by step. - [FAQ](https://vaultstudiopro.com/faq): Answers about Vault Studio Pro: what stays on your device, file compatibility, the free trial, licenses and refunds, offline use, and fixing common problems. - [Sitemap](https://vaultstudiopro.com/sitemap): A list of every page on the Vault Studio Pro website, grouped by section (tools, product, resources, company and legal), with a short summary of each page. ## Company - [Contact](https://vaultstudiopro.com/contact): Email support@vaultstudiopro.com for help, lost license keys, refunds, privacy requests, security reports and press. What to include so we can help quickly. - [About](https://vaultstudiopro.com/about): Why Vault Studio Pro edits your documents in the browser instead of on a server, the principles it runs on, how it is built and funded, and how to reach us. - [Changelog](https://vaultstudiopro.com/changelog): Every Vault Studio Pro release, and the date each Pro feature shipped, which sets what Pro Annual and Founders licenses keep forever. - [Accessibility](https://vaultstudiopro.com/accessibility): How Vault Studio Pro works with keyboards and screen readers, what we have tested, the known limitations, and how to report an accessibility problem. ## Legal - [Privacy policy](https://vaultstudiopro.com/privacy): Your documents stay in your browser and never reach us. No accounts, ads or analytics. What Stripe, Cloudflare and our license server see, and your rights. - [Terms of service](https://vaultstudiopro.com/terms): Vault Studio Pro terms: license scope, the free trial, automatic renewal and how to cancel, keep-forever terms, revocation, acceptable use and liability. - [Refund policy](https://vaultstudiopro.com/refunds): Full refunds within 14 days on Pro Monthly, Pro Annual, Founders and Lifetime, 24 hours on the Week Pass. How to ask and how refunds are paid. ## Other pages - [Check a PDF redaction](https://vaultstudiopro.com/blog/check-if-a-pdf-redaction-worked): A practical checklist for testing a redacted PDF with free tools: copy and paste, search, text extraction, metadata, attachments and earlier saved versions. - [Edit a .docx privately](https://vaultstudiopro.com/blog/edit-docx-without-uploading): Where your document goes when you use an online editor, how to edit a .docx entirely in your browser, and which formatting survives the round trip. - [Open a .pptx without PowerPoint](https://vaultstudiopro.com/blog/open-pptx-without-powerpoint): Free ways to open, present and edit a .pptx presentation without PowerPoint: desktop suites, online services and a private in-browser editor, compared. - [What client-side means](https://vaultstudiopro.com/blog/what-client-side-really-means): How to verify that a web app keeps your files on your device: the browser Network tab, Content-Security-Policy headers, an offline test, and their limits. - [Encrypt a document](https://vaultstudiopro.com/blog/encrypt-a-document-aes-256): AES-256-GCM and PBKDF2 in plain English, how to pick a passphrase that holds up, how to encrypt and share a file safely, and what if you lose the password. - [OCR a scanned PDF](https://vaultstudiopro.com/blog/ocr-scanned-pdf-without-uploading): How OCR turns a scanned PDF into text, how to run it in your browser without uploading the file, and practical tips for better accuracy on English documents.