MingLabs中文
← All browser tools

Private local video tool

Extract full-resolution frames from a video.

Choose a local video, land on the moment you need, or sample the whole clip. Frames are decoded and saved on your device without uploading the video.

01 — Extract frames

Choose a video and find the right frame.

The exported image uses the decoded video's display dimensions and rotation, not the size of this on-page preview.

Captured frame preview

02 — Single or batch

Grab one exact moment, or sample the whole video.

01

Navigate decoded frames

Enter a time, drag the timeline, or move to the adjacent decoded frame. The displayed timestamp is the frame actually returned.

02

Choose a total count

Create a compact overview with up to 100 images spread evenly from the start to the end.

03

Choose a time interval

Extract one image every N seconds for reviews, records, references, or thumbnail selection.

03 — Choose an image format

PNG for lossless detail. JPG or WebP for smaller batches.

The tool exports at the decoded video's display size. It does not upscale the source, add player controls, or improve detail that was not present in the encoded frame.

04 — Local processing

The video stays on this device.

Media decoding and image encoding happen in the browser. If you request a ZIP, the page may load the fixed fflate library from jsDelivr, but the library receives no video bytes, names, metadata, or output images.

05 — Common questions

What to know before extracting frames.

Is the video uploaded?

No. The selected file is read by browser media APIs on your device. MingLabs and the optional ZIP library never receive the video, its name, metadata, or extracted images.

Is this better than taking a screen screenshot?

A normal screen screenshot is limited by the displayed player size and may include controls. This tool exports the decoded frame at the video's display dimensions and applies its stored rotation.

Can I extract one frame every few seconds?

Yes. Choose batch extraction and enter an interval in seconds, or request a fixed number of frames spread evenly across the whole video.

Are frame times exact?

The tool returns the decoded frame displayed at the requested time and shows that frame's actual timestamp. Variable-frame-rate video does not necessarily have a frame at every mathematically expected interval.

Should I use PNG, JPG, or WebP?

PNG is lossless but often large. JPG is the practical default for photos and batches. WebP can be smaller while keeping good quality in current browsers.

Why will some MP4, MOV, or MKV files not open?

A file extension describes its container, not its video codec. The browser must also support the codec inside that container.

07 — MingLabs Apps

Useful beyond the browser.

Three focused apps for making videos, showing messages, and sharing media more safely.

LiveCollage app iconLive Photo video makerLiveCollageTurn scattered Live Photos into one video, a moving grid, or a split-screen memory to share.iDCall app iconLED rolling textiDCallTurn your iPhone or iPad into a bright, customizable scrolling LED banner.SafeShare app iconOn-device photo & video privacySafeShareCover faces and sensitive details in photos and videos without uploading your media.