Batch upload .eml files — browser locally extracts HTML email bodies. Supports preview, individual download and ZIP. CID-embedded images are auto-converted to Base64. Data is not uploaded to any server.
Features
- Click or drag to batch upload .eml — auto-serial conversion after upload, no config dialog needed.
- Exports HTML body only, without metadata like subject, sender, recipient, time.
- cid-embedded images in bodies are auto-converted to Base64 for offline viewing after download.
- Task list shows waiting / progress / success / failure; successful items can be previewed and downloaded.
- "Download All" only packages successful files; if mixed with failures, it prompts to export only successful results.
Use Cases
- Archive marketing and notification emails as static web pages.
- Extract HTML from .eml files for front-end or landing page editing.
- Batch convert historical email bodies to searchable, offline-viewable .html files.
- Use local tools for privacy when you don't want to upload email content to third-party conversion sites.
How to Use
Open the Email to HTML tool. Click the dashed box or drag one or more .eml files (max 20MB per file). Wait for the task list conversion to complete; click "Preview" to view the body in a popup (use "Copy content" to copy the full HTML), or click "Download" to save a single HTML file. To take multiple files at once, click "Download All" (multiple successful files are packaged into ZIP). Click "Reset" to clear the list and return to the initial upload page.
Notes
- Supports .eml only, not Outlook .msg; max 20MB per file, max 10 files in list.
- All runs in local browser; ZIP loading uses JSZip from CDN.
- Plain text emails without HTML body are exported as simple webpages with <pre>.
- Corrupted or unparseable emails are marked as failed — does not affect other files in the batch.
- Preview uses sandboxed iframe; scripts in emails will not execute; external linked images still depend on original network.
Related Keywords
Email to HTML, Convert Email to Webpage, eml2html, .eml, Email Body, cid Base64, Local Parse, Batch Conversion, ZIP, Sanye Hub, Online Tools