Guide
Snapchat export is huge (5GB, 13GB+)? How to handle a large library
A multi-gigabyte Snapchat Memories export is normal, not a sign that something broke. The trick is handling all that data without it choking — fixing the dates and locations in a way that never tries to swallow the whole library in one gulp, and choosing the route that suits the size.
Why is the export so big?
Because it's every photo and video you ever saved to Memories, at full resolution. Video carries most of the weight — a single clip can outweigh hundreds of photos — so stretch an active account across several years and a 5 GB, 13 GB, or even larger archive is completely ordinary. You're getting the full-resolution originals back, not thumbnails. One side effect of that size: past a certain point Snapchat splits the download into several zip parts (mydata~…-1.zip, …-2.zip, and so on) — grab every one, because the metadata that makes the fix possible lives in just a single part.
How can a tool fix a 13 GB library without choking?
By never holding the whole thing in memory or on disk at once. Online, MemoriesExport works through your export in batches: it reads a slice, writes the correct capture dates and GPS into those files, and streams them back into a ready-to-import zip — then moves to the next slice. Because the work flows through in pieces, a giant library is just more batches, not a wall the browser hits. Your files aren't kept around afterward either; online retention is bounded, not permanent. If you'd rather skip uploading and downloading gigabytes entirely, that's exactly what the desktop choice is for (next section). See how it works for the full pipeline.
When should I use the desktop app instead?
Use the Mac or Windows app for the biggest libraries, a slow or capped internet connection, or when you simply don't want your media to leave your computer. The desktop app runs fully offline and processes everything locally, so there's no multi-gigabyte upload and no re-download — it reads the export sitting on your drive and writes the fixed files right back. For a 13 GB-plus archive that turns hours of transfer into a local job that just runs — on the biggest online jobs the slow part is usually your upload bandwidth, not the actual fixing, and desktop removes that step entirely. Both routes write the same correct dates and GPS (the desktop app also burns overlays onto video); the only question for a huge library is whether the gigabytes travel or stay put. The deep-dive on that trade-off is in online vs. desktop.
What you actually need to do
Export your Memories from Snapchat (My Data → Export Your Memories), download every zip part it gives you, and keep them together — a big library arrives split across parts and the real metadata sits in only one of them, so a missing part means missing memories. Then hand the whole set to MemoriesExport — online if your library is manageable and you want zero install, desktop if it's enormous or you want it offline. Either way the real dates and locations come back, and your first 100 memories are free to try before anything else.
Frequently asked questions
- How big can a Snapchat Memories export get?
- Years of saved photos and videos routinely add up to several gigabytes, and heavy users see 5 GB, 13 GB or more. Video is the main driver — it's far larger than photos — so a video-heavy account balloons fast.
- Will a huge export overwhelm the online tool?
- No. The browser version processes your library in batches and streams the result back, so it never has to hold the whole thing at once. For the very largest libraries, or if you'd rather nothing leave your machine, the desktop app processes everything locally.
- Will fixing a big library change my file sizes or quality?
- No. The fix rewrites the metadata inside each file — the capture date, GPS and overlay — and never re-encodes your photos or videos, so quality is untouched and sizes barely move. A 13 GB library stays about 13 GB after fixing.
- Does a bigger export cost more to fix?
- No. The first 100 main memories are free and a one-time $9.99 unlocks unlimited, lifetime — size doesn't change the price. A 50-memory library and a 50,000-memory library cost the same to fully process.