CONVERT
VOB → PNG
Tap to choose your fileDRAG. DROP. DONE.
Upload any file and our engines will handle format detection automatically.
Max 100 MB · Free plan · No signup required
Convert to:
Detecting available formats...
Optimize for
Leave empty to use original name. Extension added automatically.
Uploading...
Processing your file...
Fast, secure VOB to PNG conversion. No registration required.
Here is the short version — VOB is the DVD-Video container that holds the MPEG-2 streams on a DVD disc. Hence the need for PNG. VOB to PNG conversion is what powers every thumbnail, every sprite sheet and every "scrubbing preview" in modern video players. Our pipeline exposes the same capability as a simple upload-and-download tool you can run from any browser. Keep in mind VOB is the DVD-Video container that holds the MPEG-2 streams on a DVD disc. And remember that PNG is the lossless image standard with alpha-channel transparency and deflate compression.
DVD Video Object
Source formatVOB (Video Object) is the container format for DVD video content.
PNG Image
Target formatPNG is a lossless image format that supports transparency. It is ideal for graphics, logos, screenshots, and any image where preserving exact pixel data is important.
Why convert VOB to PNG
Image-only destinations like printed documents, favicons and email newsletters will reject VOB outright. Extracting to PNG unlocks those channels without asking you to cut and re-render the video in an NLE.
HOW TO CONVERT
VOB → PNG
Provide the video
Select or drop a VOB file. The pipeline reads the header and figures out the frame timing.
Extract the still
We decode the requested frame at its native resolution and encode it as a PNG.
Save the image
Download the PNG. Original and output are auto-deleted within two hours.
Common Use Cases
Contact sheets
Extract one PNG per N seconds of a VOB to build a visual index of long footage.
Training slide decks
Drop PNG stills from a tutorial VOB into PowerPoint or Keynote to create a still-frame walk-through.
Chat-friendly previews
Teams and Slack preview PNG files inline but won't autoplay every VOB — pick a frame and share that instead.
Print-ready stills
Magazines and posters need a PNG at print DPI. Extract the best frame from a VOB master for hand-off to the print shop.
VOB vs PNG — Strengths and limitations
What each format does best, and where it falls short.
VOB Strengths
- Universal DVD support on every player ever made.
- Carries multiple audio tracks, subtitles, and menus in one container.
- Mature tooling ecosystem for extraction and editing.
Limitations
- Hard 1 GB file-size cap forces multi-file splits.
- MPEG-2 compression is 2-3× larger than modern codecs.
- Tied to CSS copy protection — decryption was once illegal.
PNG Strengths
- Lossless compression — every save preserves the original pixels perfectly.
- Full 8-bit alpha channel for smooth transparency.
- Excellent for text, UI screenshots, logos, and line art.
- Royalty-free and an ISO standard (ISO/IEC 15948).
- Supports 16-bit color depth for high-fidelity work.
Limitations
- Much larger than JPEG for photographs (no perceptual compression).
- No native animation in most software (APNG support is inconsistent).
- No CMYK support — web and screen only, not print.
VOB vs PNG — Technical specifications
Side-by-side comparison of the technical details.
VOB
- MIME type
- video/dvd
- Extension
- .vob
- Container
- MPEG-2 Program Stream with DVD extensions
- Video codec
- MPEG-2
- Audio codecs
- AC-3, DTS, MPEG audio, LPCM
PNG
- MIME type
- image/png
- Compression
- Lossless — DEFLATE (zlib)
- Color depth
- 1, 2, 4, 8 or 16 bits per channel
- Max dimensions
- 2^31 − 1 pixels per side (2.1 billion)
- Transparency
- Full 8-bit alpha channel
- Standard
- ISO/IEC 15948:2004
| Specification | VOB | PNG |
|---|---|---|
| MIME type | video/dvd | image/png |
| Extension | .vob | — |
| Container | MPEG-2 Program Stream with DVD extensions | — |
| Video codec | MPEG-2 | — |
| Audio codecs | AC-3, DTS, MPEG audio, LPCM | — |
| Compression | — | Lossless — DEFLATE (zlib) |
| Color depth | — | 1, 2, 4, 8 or 16 bits per channel |
| Max dimensions | — | 2^31 − 1 pixels per side (2.1 billion) |
| Transparency | — | Full 8-bit alpha channel |
| Standard | — | ISO/IEC 15948:2004 |
VOB vs PNG — Typical file sizes
Approximate file sizes for common scenarios.
VOB
- Single VOB segment ~1 GB (capped)
- 2-hour DVD movie (full VIDEO_TS) 4-7 GB
PNG
- Icon or small logo 2–20 KB
- UI screenshot (1920×1080) 200–800 KB
- High-res photo (12 MP) 10–30 MB
- Print-ready illustration 5–50 MB
Quality & Compatibility
Colour rendering depends on the VOB video's colour space. BT.709 HD video and BT.2020 HDR content both map cleanly into a standard sRGB PNG; true HDR wide-gamut extraction requires the specific PNG formats that support it (JPEG XL, AVIF).
Tips for Best Results
- Use batch extraction when you need a contact sheet — one PNG every 5-10 seconds gives a readable overview of any VOB.
- Set Advanced → scale to target your destination pixel size once in the pipeline instead of resizing the PNG later in Photoshop.
- Keep the VOB alongside the PNG so you can redo the extraction with different settings without re-uploading.
Frequently Asked Questions
Yes. The free tier accepts files up to 100 MB without registration, email capture or watermarks. Paid plans raise the size cap, enable batch conversions and provide a REST API for automation, but nothing on the free tier is quality-limited — the output is exactly the same as on any paid plan.
Yes. The Advanced panel accepts a timestamp in HH:MM:SS.mmm and FFmpeg seeks to that exact presentation time. You can also request the first, middle or last frame shortcuts, or a full batch (one PNG per second or per N frames).
Uploads run over HTTPS, files are processed in isolated containers, and both the source VOB and the PNG output are auto-deleted within two hours. No account is required, file contents are never logged, and KaijuConverter does not use uploads for AI training. The paid plan adds a signable data-processing agreement for regulated workflows.
Yes by default. The extracted frame is written at the same width and height as the source video. If you need a smaller image for the web, an Advanced "scale" option downsizes during the same pass so you do not have to re-encode twice.
Most files finish in well under a minute. Small images and documents are typically ready in a few seconds; large video or audio files scale roughly with duration. Upload speed from your network is usually the dominant factor, not server time.
Partially. We tone-map HDR VOB content back to SDR when the target PNG does not support wide-gamut. For proper HDR preservation pick a modern PNG that supports it natively (JPEG XL or AVIF) and leave "preserve HDR" enabled in Advanced.
Related comparisons
See these formats side by side to understand which fits your use case best.
Related Guides
PNG: Advanced Color Modes, Filtering & Compression Strategies
Comprehensive guide to PNG encoding: color types (indexed, grayscale, RGB, RGBA), scanline filtering (Sub/Up/Average/Paeth), CRC checksums, gamma correction, ICC color profiles, interlacing methods.
Read guidePNG Format: Complete Technical Guide to Lossless Image Compression, Transparency & Interlacing
Learn PNG (Portable Network Graphics): IHDR structure, color types, IDAT chunks, PLTE palette, bit depths, interlacing, compression, color profiles.
Read guidePNG: Portable Network Graphics — Complete Technical Deep Dive
Complete PNG guide: chunk architecture (IHDR/IDAT/IEND), color types and bit depths (RGBA/Grayscale/Indexed), five filter algorithms (Sub/Up/Average/Paeth), DEFLATE compression, APNG animation, Python Pillow and pypng, oxipng/pngquant optimization, and PNG vs WebP vs AVIF.
Read guideSecure & Private Conversion
Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 60 minutes. We never read, share, or store your data.