Decimen Optical Transfer: Decimen: Transfer Files Securely
Transfer files securely using light, no accounts or pairing required.
★ 4.0 / 5 iKeep scoreQuick facts
Overview
Decimen Optical Transfer enables file and text transfer between devices using animated QR codes and light, eliminating the need for accounts, pairing, or network paths. It supports files up to 64 MB and text snippets up to 4 MB, with speeds up to 418 KB/s.
Using Decimen Optical Transfer
- Install the appDownload and install Decimen Optical Transfer from the official website or app store on both sending and receiving devices.
- Select file or textOpen the app on the sending device and choose whether to transfer a file (up to 64 MB) or a text snippet (up to 4 MB).
- Generate QR codeThe app will generate an animated QR code or use light patterns to encode the data for transfer.
- Scan with receiverOn the receiving device, open the app and scan the QR code or capture the light patterns from the sender's screen.
- Complete transferWait for the transfer to complete. The file or text will be available on the receiving device without requiring any network connection.
Pricing
| Plan | Price | Note |
|---|---|---|
| Free | Free | Open source with no ads |
💡 Indicative pricing — check the official rates at decimen.app · Updated 8/14/2026
Key features
- Transfer files up to 64 MB
- Send text snippets up to 4 MB
- No account or pairing required
- No network path between devices
- Free, open source, and no ads
Pros
- Secure transfer without network dependency
- Fast transfer speeds up to 418 KB/s
- Free and open source with no ads
Cons
- Files are not encrypted
- Limited to devices with screens and cameras
Use cases
- Quickly transfer files between devices
- Send text snippets securely
- Use in environments without network access
The verdict
Decimen Optical Transfer is a standout solution for secure, fast file transfers without the need for network paths, ideal for users prioritizing privacy and simplicity.
✓ Who should use it
Anyone needing to transfer files securely and quickly without relying on network connections.
✕ Who should skip it
Users requiring encrypted file transfers or those without access to devices with screens and cameras.
Great for
Frequently asked questions
Is Decimen Optical Transfer — transfer files with light free?
Decimen Optical Transfer — transfer files with light is free to use.
What is Decimen Optical Transfer — transfer files with light best for?
Users needing secure, fast file transfers without network dependency
Does Decimen Optical Transfer — transfer files with light have an API?
No, Decimen Optical Transfer — transfer files with light does not offer a public API.
Can I self-host Decimen Optical Transfer — transfer files with light?
No, Decimen Optical Transfer — transfer files with light is not self-hostable.
Who should use Decimen Optical Transfer — transfer files with light?
Anyone needing to transfer files securely and quickly without relying on network connections.
Reviews 4.0 ★ · 1 review
Decimen Optical Transfer impresses with its innovative use of light for secure file transfers, bypassing the need for network paths or accounts. Its simplicity and speed make it a top choice for users prioritizing privacy and efficiency. While the lack of encryption may deter some, its open-source nature and ad-free experience add to its appeal. Ideal for quick, secure transfers in environments without network access, Decimen stands out in the crowded file transfer space.
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