Captioner vs mp3.now
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Captioner compared with mp3.now
| Detail | 
Captioner | 
mp3.now |
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| What it does | AI subtitle generator and editor for videos
| Free audio conversion and editing with no signup required
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Free: 30 one-time credits. Basic: $10/month (300 credits) or $60/year. Creator: $20/month (1,200 credits) or $120/year. One-Week Pass: $7 one-time (120 permanent credits + 7 days Creator features). Additional permanent credits: $6 for 120 credits, $15 for 300 credits, $30 for 600 credits.
| Guest (free): 10 conversions/day, 10 MB limit. Free Account (free): 20 conversions/day, 50 MB limit. Premium: €9.99/month (€95.99/year) with unlimited conversions, 200 MB limit. Premium Plus: €29.99/month (€287.99/year) with 1 GB limit and advanced features.
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| Key features | - 98%+ accuracy AI transcription
- Support for 98+ languages
- Transcribe up to 2 hours per video
- Export in SRT, VTT, and SBV formats
- Precise word-level timestamps
- In-browser subtitle editing
- Automatic transcript alignment
- Video export with burned-in subtitles
- Subtitle translation to 15+ languages
- Built-in voice extraction for background noise
| - Convert between 50+ audio formats including MP3, WAV, M4A, FLAC, AAC, OGG
- Compress MP3 files with bitrate control (128, 192, 256, 320 kbps)
- Trim and cut audio clips by start and end time
- Merge multiple MP3 files into one
- Normalize audio volume levels
- Change audio speed or bitrate
- Extract audio from video files (MP4, MOV, MKV, AVI, WebM)
- REST API for programmatic conversion with JSON requests
- Automatic file deletion after 24 hours for guests, 7 days for free accounts
- Batch convert up to 10 files at once on free account
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| What makes it different | - Highest accuracy AI transcription optimized for videos
- Precise timestamps requiring minimal manual editing
- Editing experience built by content creators for creators
- Automatic alignment of existing transcripts
- Supports multiple subtitle formats and platforms
| - No signup required to start converting
- Privacy-first approach with no tracking or sharing of uploaded files
- Core tools remain free forever
- Fast conversions optimized to take seconds not minutes
- Simple interface with no dark patterns or forced signups
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 23 ▲ +1 (up) since last check | 51 ● no change since last check |
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| Trust Flow (Majestic) | 8 | 17 |
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| Citation Flow (Majestic) | 29 | 33 |
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| Referring domains (Majestic) | 80 | 123 |
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5 details filled in for both companies.
More alternatives to Captioner More alternatives to mp3.now