Step 1: Transfer your FLV files using the button above or by slide and deposit.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Retrieve your converted PNG files.
FLV to PNG Conversion FAQ
How do I extract frames from an FLV video as PNG images?
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Upload the FLV and the converter exposes a frame-extraction picker: every Nth frame, frames at specific timestamps, or one frame per second. Each chosen frame is encoded as an individual PNG file and the full set is bundled into a ZIP archive for download. FLV is the Flash Video container that carried essentially all web video from roughly 2003 until Flash was switched off at the end of 2020. PNG was designed in 1996 as a patent-free replacement for GIF, and became the web’s default lossless image format.
Can I get the PNG frames without the subtitles?
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Only if the FLV never had them burned in, because FLV has no selectable subtitle stream to switch off. Anything an FLV shows on screen is in the picture itself, so it is in every PNG the extraction produces and no setting removes it afterwards. Where a separate subtitle file exists alongside the video, extract from a source that kept the two apart and the frames come out clean. No current browser, phone or TV can play FLV — anything still in this container has to be moved out of it to remain watchable.
Does the PNG output support transparency?
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The format does, but the source has no alpha to give it — video frames and rendered pages are fully opaque by nature, so every pixel arrives solid. The alpha channel is still useful afterwards: it means you can cut a subject out of the PNG later without changing format again. PNG is the right choice for screenshots, logos, line art and anything with hard edges or transparency — no ringing, no colour banding.
How big will the PNG files be?
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Larger than you might expect, because PNG keeps every pixel exactly rather than approximating. A 1080p still lands around 2-5 MB and a 4K still around 6-15 MB, so a long extraction run adds up quickly. That is the right trade when the images feed further processing, and the wrong one when they are going straight onto a web page. PNG uses DEFLATE compression over filtered scanlines, so every pixel survives exactly, plus a full 8-bit alpha channel.
At what resolution does each extracted PNG frame come out?
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The same resolution as the FLV video — a 1080p FLV produces 1920×1080 PNG frames; a 4K FLV produces 3840×2160 PNG frames. Use the resize utility after extraction if you want smaller thumbnails or social-media-sized crops.
Can I extract every single frame from FLV as PNG?
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Yes, but be careful with file count — a 30fps 1-minute FLV produces 1,800 PNG frames. We pack them into a ZIP automatically. For longer clips, the "1 per second" option (60 frames) or specific timestamps gives a manageable result.
Will the extracted PNG images preserve the FLV color grading?
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Yes — colour is decoded with the matrix the source FLV uses (BT.709 for HD, BT.2020 for 4K HDR). HDR sources are tone-mapped to SDR on extraction to PNG because most PNG formats (PNG, JPG) cannot store HDR pixel ranges natively.
What is the file size of one extracted PNG frame?
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Depends on resolution and PNG codec. A 1080p PNG frame is typically 2 to 5 MB; a 1080p JPG at quality-85 is 200 to 500 KB; a 4K PNG is 6 to 15 MB. At the extreme, every-frame PNG extraction of a 10-minute 1080p FLV produces ~50 GB total.
Does the extracted PNG retain EXIF camera metadata?
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The FLV container does not store per-frame EXIF the way a still camera does, so the PNG files come out with empty EXIF. We embed a `creation_time` field pointing at the source frame timestamp so you can re-sort the bundle by capture order.
How long does frame extraction from FLV to PNG take?
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Frame extraction is fast — typically 20 to 30% of source duration on the standard pipeline. A 5-minute FLV → PNG bundle finishes in about a minute regardless of frame count, because the bottleneck is the PNG encoder, not the FLV demuxer.
Can I extract frames at specific timestamps in the FLV?
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Yes — the advanced option accepts a comma-separated list of timestamps (e.g. `00:01:23,00:05:00,00:10:42`) and produces one PNG file per timestamp. Useful for chapter thumbnails, scene reference shots, or thumbnailing long lectures.
Is my FLV video private during frame extraction?
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Yes — same privacy model as every conversion. Source video and extracted PNG frames are processed in isolated workers and deleted within minutes; no human review, no training corpus, no third-party access.
FLV (Flash Video) is a video container format developed by Adobe. It is commonly used for online video streaming and is supported by Adobe Flash Player.
