Which App Should You Use to Add Music to a Video? Phone, Desktop and Browser Options Compared

Phone editors (CapCut, InShot, iMovie, VN, YouTube Create)

Best for: short clips, one track, quick turnaround on the device you filmed with.

• Strengths: free or cheap, built-in music libraries, export straight to the platform.
• Limits: one or two tracks, manual trimming at every scene change, basic volume control and usually no real ducking. Library tracks are often licensed for that app's platform only.
• Time: 5–15 minutes for a one-minute clip; much longer for a ten-minute video with several changes.

Desktop editors (DaVinci Resolve, Premiere Pro, Final Cut Pro, CapCut desktop)

Best for: anything with dialogue and more than one musical change, client work, long videos.

• Strengths: unlimited tracks, crossfades, keyframed volume, automatic ducking, loudness metering, proper export control. Resolve is free; the others are paid or subscription.
• Limits: you still have to find the music, which is the slow part, and cut it to every change yourself. Learning curve for the audio tools.
• Time: 30–90 minutes for a ten-minute video including the search for a track that fits.

Browser tools that score the video (Scora)

Best for: creators who publish often and want the music to follow the content without a search-and-trim loop.

Scora works in the browser: upload the video, and the AI reads the transcript and pacing, splits the video into segments and places music that matches each one, lowered automatically under speech. The music comes from a curated, licensed library (free plan) or is generated for that video (paid plans, with a free trial on your first short video). You download the scored video, or only the MP3 and a cue sheet to finish in your own editor.

• Strengths: no track search, no trimming, ducking built in, music that changes with the content, music that cannot already be claimed by someone else. Runs on any device with a browser, including phones.
• Limits: it is not a general-purpose editor. Titles, cuts and color still happen elsewhere. Very long videos need a paid plan (Free is up to ten minutes per video).
• Time: a few minutes of upload and processing for a ten-minute video.

A quick decision table

• One short clip, one song, no voice: phone editor.
• Talking-head video, tutorial, course lesson: desktop editor with ducking, or Scora if you would rather not spend the hour.
• Weekly uploads, podcast with video, agency volume: Scora for the score, your editor for the rest.
• Film or ad with a composer's brief: desktop editor and a human composer. AI scoring is for background music, not a theme song.

Whatever app you pick: three things to check

• Volume under voice. 18–24 dB below the dialogue while someone speaks. Phone speakers reveal mistakes that headphones hide.
• Where the music changes. At least at the hook, the main turn and the close; never mid-sentence.
• The license. Covers online publishing, monetization and client work if you need them. Keep a copy.

Frequently asked questions

What is the best free app to add music to a video?

On a phone, CapCut and iMovie cover one-track jobs. On desktop, DaVinci Resolve is free and has full audio tools. In the browser, Scora's free plan scores up to five videos a month from a licensed library, with no card.

Is there an app that adds music to a video automatically?

Yes. Scora analyses the video and places music segment by segment, with ducking under speech, and returns the scored video plus the soundtrack as a separate MP3.

Can I add music to a video online without installing anything?

Yes. Scora runs in the browser on desktop and mobile; uploads are split into parts so they survive weak connections.

Which app lets me add music without copyright claims?

Any app whose music is licensed for where you publish. Scora uses a curated licensed library or generates music for your video, so the track cannot already be registered against you.