5 Best Free Online MP4 to MP3 Converters in 2026
Are you looking for the easiest way to convert MP4 to MP3, extract audio from videos, or find the best MP4 to MP3 converter online? Whether it’s for music, podcasts, lectures, or audio clips, having a reliable converter makes your workflow smooth and efficient.
Here are the top 5 tools in 2026 that help you convert video to audio — all based strictly on official website information.
Swapanything.io – Free MP4 to MP3 Converter & Media Tools
What Makes Swapanything.io Stand Out?
Swapanything.io is an online creative platform offering a full suite of media tools and format converters directly in your browser. While popular features like Face Swap and Clothes Swap are paid, the MP4 to MP3 converter and other file conversion tools are currently free. Users can upload MP4 videos and extract MP3 audio instantly without installing any software.
Why Use Swapanything.io for MP4 to MP3?
- Free MP4 to MP3 conversion: extract audio directly in your browser.
- Other converters free: image and document converters are currently free.
- Browser‑based: no software installation required.
- Local processing: conversions happen in your browser for privacy.
- All-in-one media hub: access multiple creative and format tools alongside the converter.
Pricing for Swapanything.io (subject to change)
- MP4 to MP3 & other converters: Free to use via browser.
- Face Swap / Clothes Swap: Paid plans (first month/year offers available for credits).
- Enterprise: Custom pricing for large-scale workflows.
Media.io – Free Online MP4 to MP3 Converter
How Media.io Simplifies MP4 to MP3 Conversion
Media.io provides a free online MP4 to MP3 converter that runs entirely in your browser. It supports batch conversion and multiple video/audio formats. No software installation is required.
Key Advantages of Media.io
- Totally free for MP4 to MP3 conversion.
- Batch support: convert multiple MP4 files at once.
- No install needed: browser-based interface.
- High-quality output: retain original audio quality.
- Multi-format support: works with MP4, MOV, AVI, FLV, MKV, and more.
Pricing for Media.io (subject to change)
- Free Converter: MP4 to MP3 is fully free.
- Premium Plans: optional paid plans for extended services.
- Enterprise: Custom pricing.
FreeConvert – Free Browser MP4 to MP3
FreeConvert: Quick Online MP4 to MP3 Extraction
FreeConvert is a browser-based tool for converting MP4 videos to MP3 online. It supports multiple formats and delivers high-quality audio. Conversion is fast and privacy-focused.
Why FreeConvert is a Great Choice
- Completely free for MP4 to MP3.
- Supports multiple formats including MP4, AVI, MOV, MKV, WebM.
- Batch conversion available for multiple files.
- High-quality audio output up to 320 kbps.
- Privacy-first processing: all conversion happens in your browser.
Pricing for FreeConvert (subject to change)
- Free: MP4 to MP3 conversion is fully free.
- Optional Paid Features: premium upgrades exist but are not required.
Converter.app – Free MP4 to MP3 Extractor
Extract Audio from MP4 Quickly
Converter.app allows users to upload MP4 files and download MP3 audio directly online. It supports large files and lets you adjust bitrate for audio quality.
Highlights of Converter.app
- Free online usage for MP4 to MP3.
- Supports large files over 1 GB.
- Custom bitrate options for better audio quality.
- Batch upload support up to 20 videos.
- Simple UI: no sign-up or software required.
Pricing for Converter.app (subject to change)
- Free: MP4 to MP3 conversion fully free.
- Premium: Not required for MP4 to MP3.
InVideo MP4 to MP3 Converter – Free Online Tool
InVideo: Extract MP3 From Videos Easily
InVideo allows users to convert MP4 to MP3 online quickly and for free. It handles large uploads without requiring payment or installation.
Benefits of Using InVideo MP4 to MP3 Converter
- Free: extract audio from MP4 at no cost.
- No sign-up required: start converting instantly.
- Simple workflow: upload → adjust → download MP3.
- Supports large files up to ~800 MB.
- Mobile-friendly: works on desktop and mobile browsers.
Pricing for InVideo (subject to change)
- Free: fully free for MP4 to MP3 conversion.
- Premium Video Editor: paid plans available but not required for MP4 to MP3.
Comparison & Choosing the Right MP4 to MP3 Converter
| Tool | Best For | Pricing | Key Strength |
|---|---|---|---|
| Swapanything.io | All-in-one media hub | Free MP4→MP3 | Multiple creative & format tools |
| Media.io | Free, reliable batch conversion | Free | Browser converter + multi-format |
| FreeConvert | Batch and high quality | Free | Batch, multiple formats |
| Converter.app | Large file & bitrate control | Free | >1 GB support, bitrate options |
| InVideo | Simple & intuitive | Free | Easy MP4→MP3 workflow |
FAQ – MP4 to MP3 Conversion
How do I convert MP4 to MP3 online?
Use a free online converter like Swapanything.io, Media.io, or FreeConvert: upload your MP4, convert, and download MP3.
Is MP4 to MP3 conversion free?
Yes — all tools listed offer free MP4 to MP3 conversion. Paid plans only apply to additional features.
Can I convert multiple MP4 files at once?
Yes — Media.io and FreeConvert support batch conversions online.
Do these tools work on mobile devices?
Yes — all listed converters are browser-based and run on phones without apps.
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