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Supports: WMV
WMV (Windows Media Video) is Microsoft's video codec family introduced in 1999, with WMV 9 — standardized by SMPTE as VC-1 in 2006 — as the last major revision. It survives mainly in archive footage: home videos burned to DVD in the 2000s, corporate training recordings, screencasts captured with Windows Media Encoder, and Xbox 360-era game clips. HEIC (High Efficiency Image Container) is Apple's default still-image format since iOS 11 (2017), which wraps HEVC-compressed pictures and typically stores them at roughly half the file size of an equivalent-quality JPEG. Extracting frames from a WMV and saving them as HEIC is what you reach for when you need still images out of legacy video that you want to keep small and ingest cleanly into the Apple Photos library.
| Property | WMV | HEIC |
|---|---|---|
| Type | Video container (ASF) with WMV/VC-1 codec | Still image container (HEIF) with HEVC codec |
| Released | 1999 (Microsoft); WMV 9 frozen 2003, SMPTE VC-1 in 2006 | 2017 (Apple adopted in iOS 11) |
| Compression | Lossy inter-frame video; 2x denser than MPEG-4 | Lossy intra-frame still; ~50% of JPG size at equal quality |
| Color depth | 8-bit 4:2:0 (WMV 9) | Up to 16-bit per channel (commonly 10-bit on iPhone) |
| Native playback | Windows Media Player (legacy), VLC, MPC-HC | iOS 11+, macOS High Sierra+, Windows 10/11 with HEIF extension, Safari 17+ |
| Browser support | None natively (download-only) | Safari 17+ only; Chrome/Firefox/Edge need a converter |
| Typical role today | Legacy archive playback | Default iPhone camera roll, modern still archives |
| Setting | Use when | Notes |
|---|---|---|
| Quality Preset = Very High (default) | You want best fidelity from the source frame | Larger HEIC; preserves gradients and skin tones |
| Quality Preset = Medium / Low | You're producing thumbnails or web previews | Files often drop 40-70% with minor visible loss |
| Specific Frame at Time = X seconds | You know which moment you want | One HEIC out per upload |
| Multiple Screenshots | You want a contact sheet across the clip | Outputs as a ZIP of HEIC files |
| Preset Resolution = 1080p / 720p | Source is higher than you need | Downscaling is the single biggest file-size lever |
| Resolution Percentage | You want proportional shrinkage | 50% halves both dimensions = ~1/4 the pixels |
You'd convert when you only need a representative frame: a thumbnail for a blog post, a still for documentation, a profile-style picture pulled from a recording, or an archive image to drop into Apple Photos. For full playback, convert WMV to MP4 instead — MP4 with H.264 plays everywhere and is the modern replacement for WMV's playback role.
Windows 10 (build 1809+) and Windows 11 support HEIC, but you need Microsoft's HEIF Image Extensions installed from the Microsoft Store — and on most retail Windows builds, the HEVC Video Extensions cost a small fee unless they shipped with the OEM image. If the recipient is on Windows without those extensions, convert WMV to JPG is more universal.
Open the WMV in any player (VLC, Windows Media Player, QuickTime via Flip4Mac on legacy macOS) and scrub to the moment you want, then read the elapsed time from the player. Enter that value in the Time (seconds) field. For a 90-second clip where you want the frame at 1:23, enter 83. Decimal seconds (e.g., 83.5) are accepted.
Yes. Switch the Frame Selection mode from "Specific Frame" to "Multiple Screenshots." The tool samples frames across the clip and outputs a ZIP of HEIC files. This is much faster than running the conversion repeatedly with different timestamps. For a similar all-format extractor, see video to HEIC.
A single still inherits the resolution of the source video — a 4K WMV frame is 3840 × 2160 pixels, around 1.5 - 4 MB as HEIC at Very High quality. Drop the Quality Preset to Medium or pick a smaller Preset Resolution (e.g., 1080p) and the same still typically shrinks to 200 - 600 KB. If you've already converted and want a smaller file, run it through compress HEIC.
HEIC supports up to 16-bit-per-channel color, but WMV 9 stores video at 8-bit 4:2:0, so the output is bound by the source. You'll get a clean 8-bit HEIC; you won't gain dynamic range that wasn't in the original recording. WMV's chroma subsampling (4:2:0) also means fine red/blue edges may look slightly soft in the still.
Frame decoding and HEIC encoding run in your browser session via WebAssembly. Files are not uploaded to a remote conversion server, no account is required, and there's no watermark. Closing the tab clears the working files.
HEIF is the broader file-container standard (defined in ISO/IEC 23008-12). HEIC is the variant of HEIF where the still images are encoded with HEVC / H.265 — it's the form Apple uses for iPhone camera roll photos with a .heic extension. This tool writes .heic files that the Apple Photos app, macOS Preview, and the Windows HEIF extension all open as a single still.
Yes. Use HEIC to JPG for universal sharing or HEIC to PNG if you need lossless re-encode or transparency support. Going HEIC → JPG re-encodes lossily, so do that as the last step, not an intermediate one.