How to upload long videos over 2 GB without losing quality

• Many free services cap file size (2 GB or less) or duration.
• A multi-gigabyte upload sent in one go is lost entirely if the connection drops for a second.
• Some platforms re-encode videos to save space, with a visible loss of quality.
• The browser or phone freezes if it tries to load the whole file into memory.

• Files up to 20 GB per video.
• Large files are uploaded in parts, several in parallel, straight to storage: if one fails, only that part is retried.
• You can upload several videos at once and keep using the dashboard meanwhile.
• We keep your original file as is: it isn’t re-encoded, and you can offer it for download at its original quality.

1. 1Check the format: MP4 with H.264 (or H.265) video and AAC audio is the most compatible. If you have an MKV, convert it first so it has sound in every browser.
2. 2Create your free Dembed account and confirm your email.
3. 3Drag the file into the dashboard. You’ll see progress, speed and time remaining.
4. 4Use a stable connection (Wi-Fi or cable) and don’t close the tab until it finishes.
5. 5When it’s ready, copy the link or the iframe and share it.

• Don’t re-encode unless you need to: every re-encode loses some quality.
• If you need a smaller file, use a reasonable bitrate (for example 8–12 Mbps for 1080p) instead of lowering the resolution.
• Work out the file size in advance with the video size calculator.
• Avoid uncompressed camera formats (ProRes, uncompressed AVI) for publishing: they’re ten times heavier with no visible improvement on screen.

Viewers don’t download the whole file: the player only requests the part being watched, so playback starts in seconds even for a 15 GB file. When the video has been prepared in HLS, it also adapts the quality to each viewer’s connection.