Question 1

Is the FastConvert video and audio converter free and watermark-free?

Accepted Answer

FastConvert has a free, watermark-free plan, and you do not need an account to start converting video or audio. The Free plan includes up to 20 conversions per 24 hours. Paid plans increase the batch, file size, and processing limits.

Question 2

Which video and audio formats can I convert?

Accepted Answer

Supported video formats include MP4, MKV, AVI, MOV, WebM, WMV, FLV, MPEG, M4V, TS, 3GP, and more. Supported audio formats include MP3, WAV, AAC, OGG, FLAC, Opus, M4A, WMA, and AIFF.

Question 3

How do I convert a video or audio file online?

Accepted Answer

Upload supported files from your device, Google Drive, or Dropbox. Choose the output format and select a ready-made profile, or adjust the available settings when needed. Select Convert to create downloadable results. Create a free account to save one recurring setup as a recipe; paid plans include more recipes and automatic cloud delivery.

Question 4

Can I convert MP4 to MP3 or extract audio from a video?

Accepted Answer

Yes. Upload an MP4 or another supported video that contains an audio track, then choose MP3, WAV, AAC, FLAC, OGG, Opus, M4A, WMA, or AIFF as the output. FastConvert removes the video stream and converts the audio track to the selected format.

Question 5

Can I convert audio files as well as videos?

Accepted Answer

Yes. You can convert audio between supported formats such as MP3, WAV, AAC, FLAC, OGG, Opus, M4A, WMA, and AIFF. Audio-only inputs can be converted to another audio format, but not into a video file.

Question 6

Will video or audio conversion reduce quality or file size?

Accepted Answer

It depends on the output format, profile, codec, and quality settings. The Smaller file profile favors compression and limits video to 1080p and 30 FPS, while High quality preserves more detail. Lossy formats can change quality, and the result may be smaller or larger than the original. FLAC and WAV use lossless audio encoding but cannot restore detail already missing from the source. An exact output size is not guaranteed.

Question 7

What do the video conversion profiles change?

Accepted Answer

Recommended uses reliable defaults for the selected output format. High quality favors detail, Smaller file uses a more efficient compatible codec with practical resolution and frame-rate limits, and Fast conversion favors processing speed. Choose Custom to control the compatible codec, quality, maximum resolution, frame rate, encoding speed, and audio handling yourself.

Question 8

What do the audio conversion profiles change?

Accepted Answer

Recommended keeps FastConvert's reliable existing defaults. High quality preserves more audio detail, Smaller file favors efficient codecs and compact quality, and Speech / Podcast uses mono audio at up to 24 kHz for voice. Custom lets you choose the compatible codec, codec-specific quality, maximum sample rate, channels, bit depth, and FLAC compression effort. These controls are also available when extracting audio from video.

Question 9

Which audio codecs can I choose?

Accepted Answer

FastConvert only offers reliable choices for each output container. OGG supports Vorbis or Opus, and M4A supports AAC or ALAC. MP3, AAC, FLAC, Opus, WMA, WAV, AIFF, and AIFC use their compatible codec automatically. Controls that do not apply to the selected codec are hidden.

Question 10

What is the maximum video or audio file size?

Accepted Answer

Each video or audio file can be up to 100 MB on Free, 300 MB on Basic, or 1 GB on Pro.

Question 11

Can I batch convert multiple video or audio files at once?

Accepted Answer

Yes. The Free plan processes up to 2 video or audio files in one batch, Basic up to 4, and Pro up to 12. You can choose an output format and profile for each file, or apply the same complete video or audio settings to the whole batch.

Question 12

How long does video or audio conversion take?

Accepted Answer

Conversion time depends on the file size, duration, source codec, output format, and current processing load. Video usually takes longer than audio. The processing limit per file is 2 minutes on Free, 10 minutes on Basic, and 30 minutes on Pro. This is active processing time, not the duration of the source media.

Question 13

Can I convert video or audio files from Google Drive or Dropbox?

Accepted Answer

Yes. You can import supported video and audio files directly from Google Drive or Dropbox, choose an output format, and download the converted file when processing is complete.

Question 14

Are my uploaded video and audio files private, and when are they deleted?

Accepted Answer

FastConvert temporarily uploads and stores original and converted files for processing and download. Files are kept for 24 hours on Free, 1 week on Basic, or 1 week on Pro, then scheduled for automatic deletion. We do not use uploaded files to train AI models. If you choose a Google Drive or Dropbox import or export, the selected provider receives or supplies the file as part of that request.

Convert video and audio files online

Video & Audio Conversion FAQ

Supported Video & Audio Formats

File requirements

File requirements

Convert video and audio files online

Video & Audio Conversion FAQ

Is the FastConvert video and audio converter free and watermark-free?

Which video and audio formats can I convert?

How do I convert a video or audio file online?

Can I convert MP4 to MP3 or extract audio from a video?

Can I convert audio files as well as videos?

Will video or audio conversion reduce quality or file size?

What do the video conversion profiles change?

What do the audio conversion profiles change?

Which audio codecs can I choose?

What is the maximum video or audio file size?

Can I batch convert multiple video or audio files at once?

How long does video or audio conversion take?

Can I convert video or audio files from Google Drive or Dropbox?

Are my uploaded video and audio files private, and when are they deleted?

File requirements

Supported file types

File requirements

Supported file types