Convert Audio to SRT / Video to Text TranscriptAny Format → Subtitles. Fast & Automatic.
Don't waste time converting files manually. Upload your MP3, MOV, MKV, AVI, WAV, M4A - any audio or video format - and our AI automatically extracts audio, transcribes speech, and generates SRT subtitle files. No technical knowledge required. Just $8 per file.
Upload Your File - We Handle the Conversion
MP3, MOV, MKV, AVI, WAV, M4A - any audio or video format accepted
Translate Your Video
Professional subtitles in 90+ languages
Drop your video here
or click to browse files
Supports: MP3, MP4, MOV, MKV, AVI, WMV, FLV, WebM, MPEG, 3GP, M4V, WAV, M4A, AAC, FLAC, OGG, WMA, AIFF, and more
Comprehensive Format Support - 20+ Audio & Video Formats
No format conversion needed. Upload your file directly and our AI handles codec detection, audio extraction, and transcription automatically.
Video Formats (15+)
.MP4
Most common format
.MOV
Apple/QuickTime
.MKV
High-quality video
.AVI
Windows legacy
.WMV
Windows Media
.FLV
Flash video
.WebM
Web-optimized
.MPEG/MPG
MPEG standard
.3GP
Mobile video
.M4V
iTunes video
.VOB
DVD video
.TS
Transport stream
.MTS/M2TS
AVCHD camera
.ASF
Advanced systems
.OGV
Ogg video
Audio Formats (10+)
.MP3
Most common audio
.WAV
Uncompressed audio
.M4A
Apple audio
.AAC
Advanced audio
.FLAC
Lossless audio
.OGG
Ogg Vorbis
.WMA
Windows Media
.AIFF
Apple audio
.AU
Unix audio
.OPUS
Modern codec
Don't see your format listed?
Contact us - we probably support it! Our system recognizes 50+ codecs and containers.
Format-Specific Use Cases - What You Can Do
Podcasts, Audiobooks, Lectures
Upload podcast episodes, audiobooks, or recorded lectures in MP3 format. Generate timestamped SRT files for YouTube captions, show notes, or searchable transcripts. Perfect for podcast SEO, accessibility, and content repurposing. Handles interviews, multi-speaker dialogue, and audio-only content.
iPhone Videos, Mac Recordings
Convert iPhone videos, Mac screen recordings, or QuickTime exports to subtitles. No need to convert MOV to MP4 first - upload directly. Supports ProRes, H.264, and HEVC codecs. Great for content creators, vloggers, and video editors using Final Cut Pro or iMovie exports.
High-Quality Anime, Movie Downloads
MKV (Matroska) files often contain high-bitrate anime, movie remuxes, or Blu-ray rips. Upload your MKV file and get accurate subtitles for personal viewing, archiving, or sharing. Handles multi-audio tracks and automatically extracts the primary dialogue track for transcription.
Old Windows Videos, DVD Rips
Convert legacy AVI files from Windows XP/Vista era, DVD rips, or archived home videos. Supports DivX, XviD, and ancient codecs. Great for digitizing old family videos, archival footage, or converting DVD collections to subtitled digital libraries.
Professional Audio Recordings
Transcribe uncompressed WAV audio from professional recording studios, voice actors, or field recorders. WAV files maintain full audio quality, ensuring maximum transcription accuracy for legal depositions, medical dictations, or professional voiceover work.
Apple Voice Memos, GarageBand
Convert Apple voice memos, GarageBand exports, or Apple Music files (M4A/AAC format) to text transcripts. Perfect for musicians transcribing lyrics, journalists transcribing interviews, or anyone using Apple's Voice Memos app for audio notes and recordings.
Web Videos, Screen Recordings
Transcribe WebM videos from web browsers, YouTube downloads, or screen recordings. WebM is the web-optimized format used by Chrome, Firefox, and many screen recording tools. Generate subtitles for online courses, tutorial videos, or webinar recordings.
Legacy Flash Videos
Convert old Flash video (FLV) files from the pre-YouTube era, archived livestreams, or legacy e-learning content. Even though Flash is deprecated, we still support FLV files for archival transcription and subtitle generation.
Windows Media Videos, Corporate
Transcribe Windows Media Video files commonly used for corporate training, presentations, or archived video content from the 2000s-2010s. Handles WMV9 codec and Windows-specific encoding for legacy business video libraries.
How Automatic Format Conversion Works
No technical knowledge required. Our AI handles all format detection, audio extraction, and transcription automatically.
Upload Any Format
Drop your MP3, MOV, MKV, AVI, WAV, M4A, or any audio/video file. Our system automatically detects the container format and codec (H.264, HEVC, AAC, MP3, FLAC, etc.). No manual conversion tools needed.
Auto Format Detection
AI analyzes file headers and identifies the exact format, codec, audio tracks, and bitrate. Handles multi-track audio (5.1, 7.1 surround) and automatically selects the primary dialogue track for transcription.
Audio Extraction
For video files, audio is extracted using advanced codecs (FFmpeg-based). Supports all major audio encodings: AAC, MP3, PCM, FLAC, Opus, Vorbis. Audio-only files (MP3, WAV) skip this step and go straight to transcription.
Text Transcription
AI transcribes audio to text with speaker detection, timestamp precision, and 90+ language support. Export as SRT (with timecodes), VTT (for web), or TXT (plain transcript). Ready for YouTube, Vimeo, or editing software.
Technical Specifications & File Size Guidance
Video File Sizes (2GB Max)
1080p HD Video (H.264)
• 8 Mbps bitrate: 2-3 hours per 2GB
• 12 Mbps bitrate: 1.5-2 hours per 2GB
• Most feature films fit comfortably
720p HD Video
• 5 Mbps bitrate: 3-4 hours per 2GB
• Perfect for longer content
480p SD Video
• 2-3 Mbps bitrate: 4-6 hours per 2GB
• Legacy/archived content
4K UHD Video (H.265/HEVC)
• 25 Mbps bitrate: 40-50 minutes per 2GB
• Consider exporting at 1080p for longer content
Audio File Sizes (2GB Max)
MP3 Audio (128 kbps)
• Standard quality: 40+ hours per 2GB
• Perfect for podcasts, audiobooks
• 1 MB per minute approximately
MP3 Audio (320 kbps)
• High quality: 15-20 hours per 2GB
• 2.4 MB per minute approximately
WAV Uncompressed (1411 kbps)
• CD quality: 3-4 hours per 2GB
• Professional studio recordings
• 10 MB per minute approximately
M4A/AAC (256 kbps)
• Apple standard: 20-25 hours per 2GB
• Voice memos, GarageBand exports
Supported Codecs & Technical Details
Video Codecs
- H.264 (AVC)
- H.265 (HEVC)
- VP9 (WebM)
- VP8
- MPEG-4
- MPEG-2
- DivX/XviD
- WMV9
- ProRes (MOV)
Audio Codecs
- MP3 (MPEG-1/2 Layer 3)
- AAC (Advanced Audio)
- PCM (Uncompressed)
- FLAC (Lossless)
- Opus
- Vorbis (OGG)
- WMA (Windows Media)
- ALAC (Apple Lossless)
Container Formats
- MP4 (MPEG-4 Part 14)
- MOV (QuickTime)
- MKV (Matroska)
- AVI (Audio Video Interleave)
- WebM
- FLV (Flash Video)
- WMV (Windows Media)
- OGG/OGV
Manual Conversion vs. Our Automatic Service
Stop wasting hours with FFmpeg commands and conversion tools
Manual Method
Download FFmpeg
Install command-line tool, configure PATH variables, learn terminal commands
Time: 30-60 minutes
Extract Audio
Run: ffmpeg -i video.avi audio.mp3
Time: 10-30 minutes
Find Transcription Tool
Research services, create accounts, upload files again
Time: 15-20 minutes
Transcribe Audio
Wait for processing, pay separately
Time: 20-40 minutes
Format as SRT
Manually add timestamps, fix formatting errors
Time: 20-40 minutes
Total Time: 1.5-3 hours
Requires technical knowledge, multiple tools, manual work
Our Automatic Service
Upload Your File
Drop any format - MP3, MOV, MKV, AVI, WAV, M4A, etc.
Time: 1-2 minutes
AI Handles Everything
Format detection, audio extraction, transcription, timing - all automatic
Time: 20-40 minutes (automated)
Download SRT Files
Professional SRT, VTT, and TXT files ready to use
Time: 1 minute
Total Time: 20-45 minutes
Zero technical knowledge needed, fully automated, $8 flat rate
Save 1-2 hours of manual work every time
No FFmpeg. No multiple tools. No technical knowledge. Just upload and go.
Output Format Options - Get Exactly What You Need
SubRip Subtitle
Most common subtitle format. Works with YouTube, Vimeo, VLC, Premiere Pro, Final Cut Pro, DaVinci Resolve, and 99% of video players. Includes timestamps for every line of dialogue.
Best for: Universal compatibility
WebVTT Subtitle
Web-optimized format for HTML5 video players. Required by some streaming platforms and web video hosts. Identical content to SRT but with web-specific formatting.
Best for: Web video, streaming
Plain Text Transcript
No timestamps - just the raw transcribed text. Perfect for SEO content, blog posts, show notes, searchable archives, or when you only need the words without video synchronization.
Best for: SEO, documentation
Video with Burned-In Subs
Subtitles permanently embedded into video file. Cannot be turned off. Perfect for social media, YouTube, or sharing videos where subtitles must always be visible.
Best for: Social media, YouTube
All Formats Included for $8
No need to choose - you get SRT, VTT, TXT, and hardcoded video options automatically. Download whichever format you need.
Audio/Video to SRT Converter - FAQs
Can I convert MKV files directly to SRT subtitles?
Absolutely! Upload your MKV file directly - no conversion needed. Our AI automatically extracts audio from any video container (MKV, MP4, AVI, MOV, FLV, WebM) and generates accurate SRT subtitle files. MKV files up to 2GB are supported, covering most high-quality anime, movie downloads, and remux files. Processing takes 20-40 minutes depending on video length.
Do I need to convert MOV to MP4 first?
No conversion needed! Upload your MOV file directly from iPhone, Mac, or QuickTime. Our system handles Apple's MOV container format natively, extracting audio and generating SRT/VTT subtitles automatically. Supports ProRes, H.264, and HEVC codecs commonly used in MOV files. Works with both standard and high-bitrate MOV exports.
What if my file is in a weird or old format like AVI or WMV?
We support legacy formats including AVI (Audio Video Interleave), WMV (Windows Media Video), MPEG, 3GP, and more. Our processing pipeline automatically detects codecs (DivX, XviD, WMV9, MPEG-2) and extracts audio regardless of age or encoding. If you have an unusual format not listed, contact us - our system likely supports it or we can add support quickly.
Can you extract audio from video automatically?
Yes - fully automatic! Upload any video file and our AI extracts the audio track, transcribes speech, and generates SRT subtitles without requiring separate audio extraction tools. No need to use FFmpeg, VLC, or other conversion software. The system handles multi-track audio (5.1, 7.1 surround) and automatically selects the dialogue/speech track.
Do you support 4K video files or high-resolution formats?
Absolutely! We support 4K (3840x2160), 1080p, 720p, and any video resolution. Resolution doesn't affect transcription quality since we only analyze audio. However, 4K files are larger, so ensure your file is under our 2GB limit. For 4K files exceeding 2GB, export at 1080p for faster processing or use lower bitrate encoding while maintaining audio quality.
What about old formats like AVI and WMV from Windows XP?
We fully support legacy Windows formats: AVI (with DivX/XviD codecs), WMV (Windows Media Video), MPEG-1/MPEG-2, and even ancient Real Media files. These older formats often use outdated codecs, but our system has broad codec support including legacy encoders from the 2000s-2010s. Upload your DVD rips, old home videos, or archived content directly.
Can I upload MP3 podcasts and get transcripts?
Perfect for podcasts! Upload MP3, M4A, AAC, or WAV audio files from podcasts, audiobooks, lectures, or voice recordings. Our AI transcribes speech to text and outputs as SRT (with timestamps), VTT, or plain TXT files. Great for podcast show notes, SEO transcripts, accessibility captions, or searchable archives. Handles interviews, multi-speaker dialogue, and audio-only content seamlessly.
Ready to Convert Your Files to SRT Subtitles?
Stop wasting time with format converters and manual tools. Upload your MP3, MOV, MKV, AVI, WAV, M4A, or any audio/video file and get professional SRT subtitles automatically. No technical knowledge required. Just $8 per file.
20+ formats supported. 2GB file size. No subscriptions. All output formats included.