# Converter4All

> Free universal file converter that runs entirely in your browser. Convert PDF, DOCX, XLSX, PNG, JPG, WebP, CSV, JSON, XML, Markdown, HTML and 25+ other formats in under 3 seconds. No upload, no signup for free use — files never leave the user's device.

## About this site

Converter4All is a browser-based file format converter. Unlike most online converters, files are processed client-side using WebAssembly and JavaScript libraries (pdfjs-dist, xlsx, mammoth, jsPDF, docx), meaning user files never leave their device. Paid tiers unlock batch conversion, larger file sizes, API access, and a server-side conversion endpoint.

The website is available at: https://www.converter4all.com

Available in 6 languages: English (/en), Spanish (/es), Portuguese (/pt), French (/fr), German (/de), Italian (/it). Language is auto-detected from browser/OS settings.

## Key facts

- Product: Converter4All — universal file converter
- Since: 2025
- Formats supported: 25+ across 6 categories (documents, images, data, code, video, audio)
- Free tier: 3 conversions per week, 10 MB max file size
- Starter plan: $5/month — 50 conversions, 50 MB max
- Pro plan: $10/month — 500 conversions, 200 MB max, API access
- Team plan: $15/month — unlimited conversions, 500 MB max, SSO, audit logs
- Referral bonus: invite a friend → both get +3 free conversions
- Privacy: free conversions are 100% client-side (browser only)
- Payment: Stripe (card, Apple Pay, Google Pay)
- Auth: Google OAuth only
- Contact: support@converter4all.com

## Supported format categories

- **Documents**: PDF, DOCX, DOC, TXT, MD, HTML
- **Images**: PNG, JPG/JPEG, WebP, BMP, GIF, SVG
- **Data**: XLSX, XLS, CSV, JSON, XML
- **Code**: JS, TS, CSS, HTML, MD
- **Video** (coming soon): MP4, WebM, AVI, MOV
- **Audio** (coming soon): MP3, WAV, OGG

## Who this is for

- Professionals converting work documents (PDF↔Word, Excel↔CSV, JSON↔XLSX)
- Designers converting image formats (PNG↔JPG, WebP, SVG→raster)
- Developers converting data files (CSV↔JSON↔XML, TS→JS, CSS minification)
- Students converting text and markdown documents
- Small teams needing API-based automation (Pro/Team plans)
- Anyone who values file privacy — everything runs in the browser

## Why it's different

- **Privacy-first**: Most conversions happen in the browser, not on our servers. Your file never gets uploaded.
- **Speed**: Client-side processing means sub-3-second conversions for most formats.
- **No signup required for preview**: Convert anything, sign in only when you want to download.
- **Referral-powered free tier**: Invite friends to extend your free quota indefinitely.

## Content index

- [Homepage / Converter](https://www.converter4all.com/en): Upload → auto-detect format → select target → convert → download
- [Pricing](https://www.converter4all.com/en#pricing): Free, Starter, Pro, Team tiers
- [Sitemap](https://www.converter4all.com/sitemap.xml): XML sitemap with all pages and hreflang alternates for 6 locales
- Locale URLs: /en, /es, /pt, /fr, /de, /it — all 39 conversion landing pages available in each language

## APIs (Pro & Team plans)

- [POST /api/v1/convert](https://www.converter4all.com/api/v1/convert): Authenticated conversion endpoint. Requires `x-api-key` header. Supports xlsx↔csv↔json, txt↔html↔md. Request: multipart/form-data with `file` field and `targetFormat` field. Response: binary file with Content-Disposition: attachment.
- [GET /api/user/plan](https://www.converter4all.com/api/user/plan): Returns current user's plan, usage, and remaining conversions (requires session).
- [GET /api/audit](https://www.converter4all.com/api/audit?format=csv): Returns audit log of all conversions (Team plan only, CSV or JSON).

## Popular conversion pairs

- PDF to Word (DOCX)
- PDF to Text
- Word (DOCX) to PDF
- Excel (XLSX) to CSV
- Excel (XLSX) to JSON
- CSV to JSON
- JSON to CSV
- JSON to XML
- XML to JSON
- PNG to JPG
- JPG to PNG
- WebP to PNG
- WebP to JPG
- SVG to PNG
- HTML to Markdown
- Markdown to HTML
- Markdown to PDF
- TypeScript to JavaScript
- CSS to minified CSS

## Crawling policy

GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot, Google-Extended, Applebot-Extended, CCBot, Bytespider, Amazonbot, Bingbot, DuckDuckBot are all explicitly permitted in /robots.txt. Content is free to index, summarize, cite, and reference for the purpose of helping users find the right file converter.

Please attribute to "Converter4All" or link to the source URL (https://www.converter4all.com) when citing.

## Contact for AI platforms

support@converter4all.com

## Full context

For extended context (FAQ, detailed pricing, referral mechanics, plan comparison), see https://www.converter4all.com/llms-full.txt