WTV to AVIF Converter

How to Convert WTV to AVIF Online

1. Upload Your WTV File: Drag and drop or click "+ Add Files" to load .wtv recordings from your PC — typically found under \Users\Public\Recorded TV\. Batch upload is supported, so you can grab thumbnails from a whole season of recordings in one pass. Files process in your browser session — nothing is stored on a server.
2. Pick Frame Selection and Quality Preset: Choose Specific Frame with a Time (seconds) offset to grab one still (e.g., 90 s in for a chapter thumbnail), or Multiple Screenshots to pull frames on a fixed interval. Set Quality Preset — "Very High (Recommended)" is the default and gives the smallest file with no visible loss; drop to High or Medium when you need sub-50 KB output.
3. Set Resolution and Compression (Optional): Use Preset Resolutions (1080p, 720p, 480p, etc.), enter custom Width x Height, scale with Resolution Percentage, or Keep original (typically 720x480 or 1280x720 for ATSC broadcasts). Image Compression trades encode speed for file size — slower settings squeeze out a few more percent.
4. Convert and Download: Click "Convert" and download each AVIF individually or as a ZIP. No watermark, no sign-up, no file-count limits.

Why Convert WTV to AVIF?

WTV (Windows Recorded TV Show) is the proprietary container Windows Media Center wrote when it recorded broadcast TV — MPEG-2 video with MPEG-1 Layer II or Dolby Digital AC-3 audio, often DRM-tagged. Windows Media Center shipped on Vista (with TV Pack 2008) and Windows 7, and Microsoft removed it from Windows 10 at launch on July 29, 2015. That leaves a lot of old .wtv archives that can't play on a modern PC out of the box, and the easiest way to surface a memorable moment from one is to pull a frame as a still. AVIF — the AV1 Image File Format, standardised by AOMedia in 2019 — is the right target: roughly 50% smaller than JPEG at matched quality, with 10/12-bit HDR support and 94%+ global browser coverage (Chrome 85+, Firefox 93+, Edge 121+, Safari 16.4+).

• Catalogue old Media Center recordings — Pull a representative frame from each .wtv so you can browse a Plex/Jellyfin library visually without re-encoding multi-gigabyte MPEG-2 streams.
• Web-optimised thumbnails for archival sites — A 1280-px AVIF still typically lands at 30-80 KB vs. 80-160 KB for the same image as JPEG, cutting page weight on retro-TV blogs or family archives in half.
• Storyboarding and review — Extract one frame per scene (Multiple Screenshots at 10-second intervals) and ship the AVIF set to an editor or family member for a quick "which clip do you want" review.
• HDR-aware stills from broadcast — ATSC 1.0 is SDR, but if you re-recorded a modern HDR stream, AVIF's 10/12-bit depth preserves highlights that JPEG (8-bit) clips.
• Replace OneDrive/iCloud space — A 1 TB Recorded TV folder reduced to one AVIF thumbnail per recording fits in a few hundred MB total, letting you delete the originals once you've migrated keeper clips to WTV to MP4.
• Documentation and reporting — Researchers grabbing news broadcasts off ATSC tuners can pull date-stamped stills as AVIF for embedding in PDFs or papers where small file size matters.

Need the full video instead of a still? Use WTV to MP4. Prefer a universal still format? Try WTV to JPG. Already have AVIFs you want shrunk further? See Compress AVIF.

WTV vs AVIF — Format Comparison

Quality Preset Quick Guide

Quality presets map to AV1 quantizer levels. Lower quantizer = bigger file, higher fidelity. Numbers below are typical for a 1280x720 still pulled from a 720p WTV.

Frequently Asked Questions

Will this work on DRM-protected WTV recordings?

No. WTV files recorded from CableCARD or other copy-protected sources carry DRM that locks playback to the original PC. We can decode the unencrypted MPEG-2 stream and pull frames, but DRM-tagged files will fail at upload — that protection is enforced at the file level, not by the player. Recordings from free over-the-air ATSC tuners are almost always unencrypted and convert without issue.

Why pick AVIF over JPEG for a TV-recording still?

Three reasons. (1) Size — AVIF is roughly 50% smaller at visually matched quality, which matters when you're extracting thousands of thumbnails from a Recorded TV archive. (2) Colour depth — AVIF supports 10- and 12-bit, so HDR broadcasts preserve highlights that JPEG (8-bit) clips. (3) Browser-native — every major modern browser decodes AVIF directly, no JavaScript polyfill needed. The trade-off is encode time: AVIF encodes 5-10x slower than JPEG, but that's a one-time cost.

What resolution should I pick if my WTV is standard-definition (SDTV)?

Use Keep original. SDTV WTVs from ATSC or analog cable are typically 720x480 (NTSC) or 720x576 (PAL). Upscaling to 1080p won't add detail — it just wastes bytes and can amplify MPEG-2 macroblocking. If you specifically need a higher pixel count for layout reasons, scale in a dedicated image editor where you can apply a sharpening pass, not at the conversion step.

Can I extract one frame at an exact timestamp?

Yes. Pick Specific Frame, then enter your timestamp in Time (seconds) — 90 for 1:30, 300 for 5:00, 3725 for 1:02:05. The converter seeks to the nearest keyframe and decodes forward to that exact frame. MPEG-2 GOP size on WTV is typically 12-15 frames, so seek accuracy is within ±0.5 s for older recordings and effectively frame-exact for newer modern-Recorded TV streams.

How many frames can Multiple Screenshots pull?

The control accepts a fixed interval (e.g., every 5 seconds, every 1 second) or a fixed frame count (e.g., 10 frames evenly spaced across the clip). For a 30-minute episode at 1-second intervals you'll get 1,800 AVIFs at ~80 KB each — about 140 MB total — which is easily handled in the browser without server upload. For longer recordings, raise the interval to keep memory pressure reasonable.

Does AVIF work on iPhones and older Android phones?

iOS Safari supports AVIF from version 16.4 (released March 2023) — partial support on 16.0-16.3, full from 16.4 onward. Chrome on Android has supported AVIF since Chrome 85 (August 2020). For phones running iOS 15 or older, or Android with WebView <85, fall back to WTV to JPG for guaranteed compatibility. AVIF coverage as of 2026 sits above 94% globally per caniuse.com.

Will the audio be preserved?

No — AVIF is a still-image format, not a video container, so audio is dropped by definition. If you want to keep the audio track, convert the whole recording to MP4 instead via WTV to MP4, or pull the audio separately as MP3 or WAV using a video-to-audio tool.

What if my WTV file plays in Windows Media Player but not in VLC?

That's almost certainly DRM. Microsoft's wtvconvert.exe (still shipping in system32 on Windows 7) could strip DRM on locally-recorded ATSC content by re-wrapping the file as DVR-MS, and that re-wrapped file would then upload cleanly here. CableCARD-protected recordings cannot be stripped — that's a hardware-level restriction.

Why is the AVIF still bigger than I expected?

A few possibilities. (1) You picked Highest (Lossless) instead of Very High — lossless AVIF is genuinely lossless and can run 5-10x larger than a perceptually-equivalent lossy AVIF. (2) The source frame has heavy MPEG-2 noise (broadcast or analog capture), which AV1 has to faithfully encode, inflating the file. Try the Medium preset to let AV1 smooth that noise out. (3) You're at 4K — extracting a 3840x2160 still will always be 4x bigger than 1080p, regardless of codec.

Are uploads private?

Files process in your browser session and are deleted when your session ends. No account is required, no email gating, no watermark, and no hidden Pro tier.