Why browser-local conversion protects your documents
How cloud upload converters work, what browser-local processing means, and when to choose privacy-first tools.
Read article →Document Converter · Zero uploads — 100% local
Free Document Converter — No Upload Required
Convert PDF, Word, Excel & images locally in your browser. Your files never leave your device.
31+ tools
No signup
Zero uploads
100% free
🔒 Zero uploads — files stay on your device·31 free tools · No account · 100% private
All conversion tools
Results may vary for complex layouts (e.g. PDF to Word). Each tool page explains limitations.
Popular tools
- PDF
Merge PDF
Combine multiple PDFs into one
Open tool → - Office
Word to PDF
Convert one or many .docx files to PDF (batch ZIP download)
Open tool → - Office
PDF to Word
Extract text to .docx; scanned PDFs use OCR automatically when needed
Advanced → - Office
PDF to Excel
Extract PDF text into .xlsx; OCR for scanned documents
Open tool → - Office
Excel to PDF
Convert spreadsheet to PDF — first sheet, local browser rendering
Open tool → - Image
HEIC to JPG
Convert iPhone HEIC/HEIF photos to JPEG — batch supported
Open tool → - Image
Images to PDF
Merge multiple images into one PDF
Open tool →
Essential tools
- Image
Images to PDF
Merge multiple images into one PDF
Open tool → - PDF
PDF to Images
Export each page as PNG or JPEG
Open tool → - Image
Image Format
Convert between JPG, PNG, WebP
Open tool → - Image
HEIC to JPG
Convert iPhone HEIC/HEIF photos to JPEG — batch supported
Open tool → - PDF
Merge PDF
Combine multiple PDFs into one
Open tool → - PDF
Split PDF
Split into one PDF per page, or extract a page range
Open tool → - Office
Word to PDF
Convert one or many .docx files to PDF (batch ZIP download)
Open tool → - Office
Excel to CSV
Export first sheet as CSV
Open tool → - Office
Excel to PDF
Convert spreadsheet to PDF — first sheet, local browser rendering
Open tool → - Office
PDF to Excel
Extract PDF text into .xlsx; OCR for scanned documents
Open tool → - Office
CSV to Excel
Create an .xlsx file
Open tool → - Text / Other
Markdown to HTML
Render Markdown as HTML
Open tool → - Text / Other
HTML to PDF
Render HTML to PDF
Open tool → - Text / Other
Text Encoding
Decode with selected encoding, output UTF-8
Open tool → - Text / Other
TXT to PDF
Convert plain text files to a readable PDF document
Open tool → - PDF
Add PDF Watermark
Stamp CONFIDENTIAL, DRAFT, or custom text on every page — locally
Open tool → - PDF
Add Page Numbers
Insert page numbers (e.g. 1 / 10) on every PDF page
Open tool → - PDF
Protect PDF
Password-encrypt a PDF — requires password to open
Open tool → - PDF
Unlock PDF
Remove open password from a PDF you own (password required)
Open tool →
Advanced tools
- Office
PDF to Word
Extract text to .docx; scanned PDFs use OCR automatically when needed
Advanced → - Office
Word to HTML
Convert .docx to HTML
Advanced → - Office
Word to Markdown
Convert .docx to Markdown
Advanced → - Text / Other
HTML to Markdown
Convert HTML to Markdown
Advanced → - PDF
PDF to TXT
Extract text; scanned PDFs use OCR when needed (language selectable)
Advanced → - Image
Compress Image
Resize and re-encode as JPEG/WebP (transparent PNG stays PNG)
Advanced → - PDF
Compress PDF
Rasterize pages to JPEG — strong compression for scanned/image PDFs
Advanced → - PDF
PDF to Grayscale
Convert color PDF pages to black-and-white — smaller files for printing
Advanced → - Text / Other
JSON to CSV
Convert JSON array to CSV
Advanced → - Text / Other
CSV to JSON
Convert CSV to JSON array
Advanced → - Text / Other
XML Format
Format or minify XML
Advanced → - PDF
Edit PDF Pages
Rotate, delete, or extract pages — 100% local, no upload
Advanced →
Why choose us?
Privacy first
Files are processed on your device only. Nothing is sent to our servers.
Free to use
No account, no subscription. Use all converters as much as you need.
Fast & simple
Drag, drop, convert, download. Most jobs finish in seconds.
No installation
Works in Chrome, Firefox, Safari, and Edge. Nothing to download.
How to convert documents online
Every tool follows the same simple workflow. No installation required.
- 1
Choose a tool
Pick the converter you need from the list below — e.g. Word to PDF or PDF to images.
- 2
Upload your file
Drag and drop or click to select. You can upload multiple files when the tool supports it.
- 3
Convert & download
Click Convert, wait a moment, then download your result. That's it.
Learning center
Step-by-step tutorials on PDF workflows, Word export quality, OCR, privacy, and file formats — not just button labels.
Step-by-step workflows →Compare vs cloud tools →
Word to PDF: prepare documents for better results
Formatting tips, style habits, and export settings that improve browser-based Word to PDF conversion.
Read article →PDF to Word and OCR: extract editable text the smart way
Understand text layers vs scans, choose OCR languages, and fix common extraction mistakes.
Read article →Excel to CSV and back: data workflows that do not break
Export spreadsheets for databases, fix encoding issues, and re-import CSV without losing columns or special characters.
Read article →
Who uses Document Converter?
Thousands of people convert documents every day without uploading sensitive files to the cloud. Here are the workflows we built this site for.
Students & teachers
Merge assignment PDFs, convert Word essays to PDF for submission portals, and compress scan photos of handwritten work — all on a library computer without installing software.
Freelancers & remote workers
Convert client invoices, export proposals to PDF, and split signed contracts for email — on a borrowed laptop where IT blocks new installs.
Small business & HR
Combine onboarding documents, extract text from scanned forms with OCR, and export payroll spreadsheets to CSV for accounting tools.
Developers & analysts
Turn JSON API responses into CSV, format XML configs, convert Markdown docs to HTML, and inspect encoding issues — locally, without sending data to third-party formatters.
Travelers & expense reports
Photograph receipts, compress images, assemble a single PDF under your company's upload limit, and keep financial documents off unknown servers.
Privacy-conscious users
Handle medical forms, legal drafts, and confidential reports knowing files never leave your browser tab. Read our privacy guide for the full picture.
Frequently asked questions
No. This site runs entirely in your web browser using JavaScript. Your documents never leave your computer unless you choose to download the output.
About Document Converter
Document Converter is a free online suite built for speed and privacy. Whether you need to merge PDFs, convert Word to PDF, extract tables to Excel, add watermarks, or convert iPhone HEIC photos — all 31 tools run locally in your browser with no account required. Every tool page includes detailed guides, six FAQs, and real-world examples — not just an upload button. We also publish workflows, comparisons with cloud converters, and in-depth tutorials so you know what to expect before you convert.
Questions or feedback? Email us at quicktools.help@outlook.com · Read our full story