Frequently Asked Questions

It's super simple: 1. Go to zapfile.ai 2. Select your file(s) or folder 3. Click to generate transfer link 4. Share the link with your recipient 5. They click the link and download directly from encrypted cloud storage

No. Zapfile works completely without any signup, registration, or email address. Just open the site and start transferring.

Yes! Zapfile works on any device with a modern browser — phones, tablets, laptops, desktops. You can transfer files between any combination of devices (Android to iPhone, Windows to Mac, etc.).

Zapfile works on all modern browsers: Chrome/Edge (version 80+), Firefox (version 75+), Safari (version 14+), Opera (version 67+), and mobile browsers (Chrome, Safari, Samsung Internet).

No. Files are encrypted in transit (TLS) and at rest (AES-256), and permanently deleted the moment your recipient downloads. Nothing persists on our servers after delivery.

Yes! All transfers use TLS 1.3 encryption in transit and AES-256 encryption at rest during the brief storage window. This provides strong security for your data during transfer.

No. Since files are encrypted at rest and permanently deleted the moment the recipient downloads, there is no persistent copy for anyone to access after delivery.

We collect minimal analytics to improve the service (transfer success rates, browser types, general usage patterns). We use Google Analytics with consent-gated loading — it only activates after you accept analytics cookies via our cookie banner. We do not track individual users across sessions or see file contents. See our Privacy Policy and Cookie Policy for details.

Yes. Files are encrypted during transfer and storage, then deleted immediately after download. This makes Zapfile suitable for confidential documents, personal files, and other sensitive content. For extremely sensitive files, consider using E2E encrypted alternatives.

There is no file size limit! Since we don't store files permanently, you can transfer files of any size. The only limit is your connection stability and the recipient's download speed.

Transfers happen at full network speed — no server bottlenecks. Actual speed depends on both devices' upload/download speeds and internet connection quality. Typical speeds range from 50-500 Mbps depending on your network.

Yes. You can select multiple files or entire folders. They'll all be transferred together through the same link.

All file types. Photos, videos, documents, archives, software — if it's a digital file, Zapfile can transfer it. No restrictions, no compression, no conversion.

Currently, you'll need to start over. We're working on resume functionality so you can pick up where you left off if the connection drops.

Transfer links expire after the recipient completes the download. Files are deleted immediately after download — there's no waiting period. If the download doesn't complete, files are automatically cleaned up.

Try these steps: • Make sure both devices are connected to the internet • Refresh the page and generate a new transfer link • Check if you're behind a strict firewall or VPN • Try a different browser • If on a corporate network, it might block file transfers

Common reasons: • The sender might have closed the page • The file might have been deleted after download • Try generating a new transfer link • Make sure both devices are online

Usually yes, but some strict corporate or school firewalls might block certain transfer types. If that's the case, try using a personal device on a different network.

Transfer speed depends on your internet connection. Tips: • Use a wired connection instead of WiFi • Close other bandwidth-intensive applications • Ensure both sender and recipient have good internet speeds

Zapfile is completely free. No hidden costs, no premium tiers, no file size limits, no transfer limits. Unlimited transfers, always.

Yes. Our costs are minimal since we don't store files permanently. The free version will always exist. If we add optional premium features in the future, the core service will remain free.

There's no limit. Transfer as many files as you want, as often as you want.

No hidden fees. Zapfile is free to use with no restrictions or surprises.

Not yet, but it's on our roadmap. For now, the unique transfer link acts as a basic password — only someone with the link can access the transfer.

Yes! This is our top priority. We're working on letting you resume interrupted transfers without starting over.

Not currently. We're planning to add a local transfer history stored only on your device.

Not yet, but we're considering it. If you're interested in integrating Zapfile into your app or service, contact us at [email protected].

We're currently working on: • Resume functionality for interrupted transfers • Transfer progress improvements • Better mobile experience • Additional security features