Cutflux
For TikTok creators

Make a beat-synced TikTok in your browser.

Drop a clip. Drop a sound. Hit "snap to beat". Cutflux locks every cut to the music using a real beat tracker, then exports 1080×1920 vertical, ready to upload. Free. No login. No watermark.

The 4-step workflow

1

Drop your clips

Drag raw clips from your phone or desktop into the timeline. Cutflux doesn't upload, everything runs in your browser.

mp4 · mov · webm
2

Drop the audio

Drag in the trending sound. Cutflux runs a dynamic-programming beat tracker and maps every onset, kick, snare, snap, drop.

mp3 · wav · m4a
3

Snap to beat

Hit Snap-to-Beat. Every cut snaps to the nearest detected beat. No drifting frames, no manual marker pushing.

1-click
4

Export 1080×1920

Vertical preset, MP4 H.264. Watermark-free download. Upload straight to TikTok.

1080×1920

Export presets for TikTok

Resolution
1080 × 1920
Aspect
9:16 vertical
Codec
H.264 / AAC
Frame rate
30 / 60 fps
Max length
60 min
Watermark
none

Trending TikTok sounds this week

Updated week of 2026-06-16. Drop any of these into Cutflux and let the beat tracker do the rest.

Game Time
Future + Tyla
FIFA 2026 soundtrack. Carrying sports, gym, travel, fashion edits all week. Hardest drop on the list.
DAISIES
Justin Bieber
Chill, pleasant. Pair with cozy travel, outfit checks, cooking clips.
Rock Music
Charli XCX
Driver of the stuck-frame glitch-edit format. Hard 4-on-the-floor for tight cuts.
Ring Ring Ring
Tyler, The Creator
Smooth retro-funk. Outfit transitions, makeup reveals.
The Puerto Rico Song
Saxboy Billy
Inescapable summer earworm. General-purpose, high virality on remix-style edits.
Heat Waves
Glass Animals
Returns every June as a golden-hour anthem. Travel and slow-mo summer content.

Why a real beat tracker matters

Beats aren't on a grid

Real songs have micro-timing, push and pull around the beat. Snapping to a metronome grid creates the "off" feeling. Cutflux detects actual onsets.

Drops feel locked

The drop is what viewers wait for. Cutting on the drop instead of one frame off is the difference between a viral edit and a forgettable one.

No manual markering

You don't have to tap M repeatedly through the song. Detection runs in one pass and the markers appear pre-placed.

Frequently asked

What is the best free TikTok video editor?

For browser-based beat-sync editing: Cutflux. For mobile-first editing: CapCut Free (note: the 2026 Pro restructure paywalled the AI features). For pro desktop work: DaVinci Resolve free.

What size should I export for TikTok?

1080×1920 vertical, MP4 H.264, under 287 MB or 60 minutes. Cutflux exports this preset by default.

How do I sync video cuts to the beat of a trending sound?

Drop the audio into Cutflux. The beat tracker maps every onset. Then drop your clips and hit Snap-to-Beat, every cut snaps to the nearest detected beat.

Will TikTok detect the audio if I edit it in Cutflux?

Yes. TikTok's auto-detect identifies the song from the audio fingerprint, not from your editor. Export with the original audio and you keep the sound attribution.

Can I add captions in Cutflux?

Yes. The editor supports captions and the Lyric Punch-Out tool generates kinetic typography that snaps to the beat.

Does Cutflux work on mobile?

The full editor is desktop-first. Several tool pages (Beat Finder, SFX Playground) work on mobile browsers, handy for prepping a soundtrack on the phone before editing on desktop.

Editing for other platforms

Related tools

Guides & trends