Party Mix Maker

Queue your songs, set a crossfade for every transition, preview the continuous mix, then export it as one MP3 or WAV — free, in your browser.

100% private — your files never leave your device

Build your mix

Turn a playlist into one continuous mix, DJ-style. Add two or more songs, drag them into party order, and choose how long each blend lasts — a quick 3-second blend keeps energy up, a long 12-second crossfade melts one track into the next. You can preview the whole mix right here before you commit, then export it as a single MP3 or WAV file to play anywhere. Everything happens on your device: your songs are decoded, crossfaded and encoded locally, never uploaded. Total audio is capped at 30 minutes so the render stays reliable on phones as well as desktops. It is built for real party scenarios: wedding receptions, workout playlists, road trips and house parties where dead air between songs kills the mood. Reorder tracks freely, give slow songs longer blends and high-energy tracks quick cuts, and export a single file that plays gaplessly on any speaker or phone.

Drop songs here or click to browse MP3, WAV, OGG, M4A — add at least 2 songs (30 min total max)

No songs yet
Add at least 2 audio files to start your mix.

MP3 bitrate (MP3 export only)192 kbps

How it works

Queue your songs

Drop in MP3, WAV, OGG or M4A files — at least two. Use the up and down arrows to set the party order, and set a crossfade length for each transition (the default 5 seconds works for most mixes). The total of all songs must stay under 30 minutes.

Preview the blend

Hit Preview mix to hear the full continuous set exactly as it will export: each track starts while the previous one is still fading out, over the seconds you chose. Stop, tweak the order or crossfade times, and preview again until it flows. The preview uses the exact same mix engine as the export, so what you hear is what you get.

Export one file

Export WAV for full uncompressed quality, or MP3 (96–320 kbps) for a compact file that plays everywhere. The mix is rendered and encoded on your device, then downloads as a single audio file — no watermark, no account.

Choosing crossfade lengths: a feel guide

The crossfade is the only transition this mixer makes — a smooth linear blend, not a beat-match — so its length does most of the musical work. As a starting point:

2–4 seconds: high-energy sets. Pop, dance and workout mixes where momentum matters more than smoothness. Short fades keep the energy from sagging between tracks.
6–8 seconds: the general party setting. Long enough to feel blended, short enough that a tempo change between songs does not turn into a wobble.
10–12 seconds: chill, dinner and background mixes, where one song should melt into the next and nobody notices the join.

Order matters as much as fade length. Build an energy arc — open mid-energy rather than with your biggest song, peak about two-thirds through, and land on something softer — and keep neighbouring tracks close in tempo and mood. Because the fade is linear rather than beat-matched, a 128 BPM dance track slammed into a 90 BPM ballad will sound abrupt at any fade length; reordering the queue fixes what the slider cannot.

Frequently asked questions

No. Your files are decoded, crossfaded and encoded entirely in your browser with the Web Audio API. Nothing is uploaded, and there is no account or server involved.

Anything your browser can decode: MP3, WAV, OGG, M4A/AAC and FLAC in most browsers. Files that fail to decode are skipped with a clear message.

The whole mix is decoded into memory and rendered in one pass, so very long mixes can exhaust a phone's RAM. Thirty minutes keeps rendering reliable on desktops and most modern phones.

Each transition uses a smooth linear crossfade: the outgoing track fades out while the incoming track fades in over the seconds you choose. It is the classic DJ blend — simple and predictable, not beat-matched.

MP3 (192 kbps) is the practical choice: small files that play everywhere. WAV is uncompressed and much larger, but keeps full quality if you plan to edit or master the mix further.

Yes. Each queued track has move-up and move-down controls, so you can build your set in the order tracks were added and then rearrange into the perfect flow — openers first, peak-hour bangers in the middle, slow closers last. Removing a track is one click, and the total runtime readout updates instantly so you always know whether the mix fits your party slot.

Usually a big jump in tempo or energy between neighbouring songs. A linear crossfade blends volume, not beats, so very different tracks overlap awkwardly. Reorder the queue so adjacent songs are closer in tempo and mood, then lengthen the fade a little.

A single render is capped at 30 minutes because the whole mix is decoded into memory at once, which keeps phones from running out of RAM. For a longer set, build it in two halves — Part 1 and Part 2 — and play them back to back.

Party Mix Maker

Build your mix

How it works

Queue your songs

Preview the blend

Export one file

Choosing crossfade lengths: a feel guide

Frequently asked questions

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