How can I transfer files from S3 to Google Drive?

I’m trying to move a large amount of files from my Amazon S3 bucket to my Google Drive, but I can’t find an easy way to do this directly. I want to avoid downloading and re-uploading everything by hand because it’s really time-consuming. Is there a simple tool or method to automate this S3 to Google Drive transfer? Any help or recommendations would be appreciated.

Shuffling Files Between Amazon S3 and Google Drive Inside CloudMounter

So, picture this: you’ve got your precious basics chillin’ in Amazon S3, but your boss suddenly wants them sitting in Google Drive “immediately, please.” What’s the least painful way to push files from one place to the other without downloading and re-uploading in a never-ending drag-and-drop loop? Here’s the workaround — straight from a weeknight in pajamas, finding shortcuts the hard way.


Why Even Bother?

Ever tried migrating ten gigs worth of data between platforms just to meet “compliance needs”? Don’t. Use something like CloudMounter. Seriously, it mounts your clouds literally next to your desktop folders, and that’s the whole trick — it turns cloud drives into glorified flash drives on your Mac.


What I Did (Because Simple Isn’t My Style)

  1. Install CloudMounter
    First things first, grab CloudMounter from the App Store. It’s like plugging in two invisible USBs you can only see on your computer.

  2. Hook Up Amazon S3
    Fire up the app, hit “Connect” or whatever, and pick Amazon S3 from the menu. Dump in your S3 keys (yes, the almost-an-arcane spell you get from AWS). Boom, another drive appears.

  3. Add Google Drive
    Same dance: choose Google Drive, bless CloudMounter with OAUTH permissions, and watch another cloud appear in your Finder.

  4. Move Your Junk
    Fun part: open both drives in Finder. Select your files or folders in S3, drag them into Google Drive’s folder, and watch macOS pretend you’ve always had cross-cloud superpowers.

  5. Coffee Break
    Biggie warning: speed depends on your internet (obviously), but at least you’re not monitoring two separate progress bars on browser tabs that time out.


My Top 3 Live-Through-It Suggestions

  1. Authenticate once, save a lot of passwords.
  2. Preview big moves with tiny files before mass-dragging, since some Amazon S3 naming conventions don’t play nice on Google Drive.
  3. If you’re stuck, relaunch Finder. I know, pro tip.

Not Rocket Science, But Still Kind of Cool

I won’t pretend CloudMounter is the only tool that does this, but for avoiding death by re-uploading, it’s a solid sidekick. No wild browser windows, no sweaty palms juggling AWS CLI. Just drag, drop, and maybe go for a walk while it churns.

If you’re a minimalist or just hate installing stuff? Sorry — this is a “one app to rule them all” kind of fix.


Need proof or more hand-holding? Their help docs are actually decent, and my only complaint is that you’ll want fast internet and some patience the first try. Otherwise? File migration just became as boring as moving stuff to a USB stick. That’s a good thing.

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Not gonna lie—moving fat stacks of files from S3 to Google Drive is such a first-world labyrinth. Saw what @mikeappsreviewer wrote about CloudMounter, and yeah, mounting everything on your Mac so you can play digital tug-of-war in Finder is pretty clutch. BUT, and this is a big but, you’re still bottlenecked by your local connection; you’re just cutting out the annoying Chrome tabs and hand-holding. That ‘no death by re-uploading’ line only works if your home wifi is beefy enough not to drop dead mid-gig.

Honestly, if you don’t mind getting your hands dirty (and maybe saving some coin), you could try a little cloud automation. Check out rclone—the open-source command line beast. You can connect both S3 and Google Drive, then run a sync or copy job straight between the two. No UI frills, just “rclone sync s3:mybucket gdrive:myfolder.” Still uses your bandwidth, but you’ve got more control and logging, plus you can schedule, filter, or throttle as needed.

Alternatively—strongly side-eyeing third-party tools here—there are cloud-to-cloud transfer services like MultCloud or CloudHQ. They literally do the fileshuffling inside the cloud, so you don’t drown your own pipes. Limited free plans and sometimes sketchy privacy vibes, but for a one-and-done, could be a win.

All in all, CloudMounter’s slick if you love that drag-n-drop life and trust the app store, but for serious automation or batch transfers, script it with rclone or punt off to a cloud service. Don’t overthink it—pick your poison and keep your sanity.

If you want a shortcut and hate the idea of scripts (or can’t stand deciphering rclone’s sometimes cryptic docs), here’s another trick that doesn’t involve CloudMounter or the whole open-source command-line gauntlet. Since @mikeappsreviewer and @kakeru already hit the main angles—CloudMounter for drag-n-drop and rclone or third-party services for cloud-to-cloud hustle—let’s not just echo their advice to infinity.

You could try leveraging AWS Lambda + Google Drive API, if you don’t mind a little DIY engineering. It’s cloud-native, so transfer happens up in the ether and doesn’t choke your home wifi the way CloudMounter or rclone inevitably will. Set up a function to pull from S3, use the Google Drive API to push each file into your Drive space, and you’re golden. Downsides? Setup is way more complicated and you gotta mess with service accounts and permission scopes, but the payoff is real if you’re moving hundreds of gigs.

Alternatively, for one-off jobs and you’re fine with some SaaS, services like MultCloud or CloudHQ (like @kakeru mentioned) are decent — though admit it, we all cringe at the prospect of handing over cloud keys to a middleman. For sensitive data, that’s a definite “read the privacy policy before you regret” situation.

For what it’s worth, every “don’t download/re-upload” tool actually still transfers the data through your own bandwidth (except those SaaS cloud-to-cloud brokers). So all the Finder-mounting magic from CloudMounter or rclone is just convenience, not a speed hack. There are no free lunches or instant tunnels in the cloud world, period.

TLDR: If you want pure convenience on Mac, CloudMounter is honestly the smoothest UX. If you want true cloud-to-cloud with no home internet bottleneck, SaaS like MultCloud is your shot, but it’s got privacy trade-offs. Feeling nerdy? Go Lambda+API and skip your own pipes entirely, but commit to some code pain. Pick what you hate least.

Let’s be real: everyone wants a straight cloud-to-cloud tunnel, but the universe laughs at us and gives us a choice between third-party SaaS, bandwidth-chugging drag-and-drop, or DIY code that doubles as a headache catalyst. MultCloud and CloudHQ, as mentioned elsewhere, offer direct brokering and are decent if you’re not paranoid about cloud credentials. Scripts and AWS Lambda recipes get you that “look ma! no home internet” vibe, but not everyone dreams in API docs.

Enter CloudMounter—a very slick way to treat S3 and Google Drive like two USB sticks on your Mac. Pros: dead simple, integrates smoothly with Finder, decent transfer stability, good docs. It’s solid if you want that desktop-native feel and can live with installing one app. Bonus: no browser tabs ping-ponging in the background, no cryptic rclone commands. Cons? Your data rides through your own pipe, so if you’ve got a throttled home connection or hundreds of gigs, it’s gonna take a while. And yeah, it’s Mac-only and not exactly free, so not for everyone.

Here’s the down-low: CloudMounter is productivity overkill if you only have a handful of files or super-sensitive data (then maybe SaaS gives you the creeps, and self-hosted scripts are king). But in terms of pure UX and “it just works,” it lands in the sweet spot so long as you’re not allergic to a $ price and aren’t moving terabytes.

Ultimately, weigh bandwidth, privacy, setup pain, and how much you hate command lines—you’ve got: CloudMounter for drag-and-drop comfort, MultCloud/CloudHQ for browser-based hand-off, and API gymnastics if you’re feeling nerdy. No free passes, just picking your least annoying path.