Developer API

Block-level sync: upload only what changed in a big file

When a big file changes a little, a sync client can send only the changed blocks of 8 to 64 MB. The server compares block fingerprints and copies the unchanged blocks inside the storage itself, so they never travel over your connection.

  • 25 GB gratis selamanya
  • Tanpa iklan di halaman unduhan
  • Tidak perlu akun untuk berbagi
  • Aplikasi Windows dan Android gratis
Mengapa upload.am

Why block-level sync

Saves bandwidth

A 100 GB disk image that changes by 1 GB uploads about 1 GB, not 100 GB.

Fits growing files

Databases, mailboxes and logs that change in place or grow at the end.

Becomes a version

The new content becomes a file version, so you can go back.

Open protocol

A developer API in the public API reference.

upload.am vs. layanan penyimpanan file biasa

Kebanyakan penyimpanan file gratis hanya memberi Anda satu hal: sebuah tautan. upload.am adalah penyimpanan cloud dengan cadangan, sinkronisasi, dan berbagi aman bawaan. Inilah perbedaannya pada fitur ini:

Di paket gratis upload.am Layanan biasa
Upload only changed blocks Termasuk Tidak tersedia
Server-side copy of unchanged blocks Termasuk Tidak tersedia
Result stored as a file version Termasuk Terbatas
Documented public API Termasuk Terbatas
Lebih dari sekadar tautan berbagi file

Hosting file cloud, cadangan, dan sinkronisasi dalam satu akun gratis

upload.am adalah platform hibrida: layanan penyimpanan cloud tempat Anda berbagi, layanan cadangan yang melindungi folder dan foto Anda, dan layanan sinkronisasi yang menjaga komputer dan cabinet Anda tetap identik. Satu login, satu penyimpanan, satu set tautan.

Hosting file cloud

25 GB gratis, folder, pencarian, pratinjau, versi, dan tempat sampah di pengelola file online Anda.

Layanan cadangan

Aplikasi Windows mencadangkan folder yang Anda pilih. Aplikasi Android mencadangkan foto, video, audio, dan kontak.

Layanan sinkronisasi

Sinkronisasi langsung di aplikasi Windows menjaga folder tetap identik di PC dan di cabinet Anda, termasuk file yang ditambahkan dari web.

Berbagi file yang aman

Kata sandi, batas unduhan, masa berlaku, tautan grup, Inbox, dan Drop Rooms.

Dapatkan aplikasi Windows gratis Lihat semua fitur

How it works

The client splits the file into blocks and sends fingerprints. The server answers which blocks it already has and which are new. Only new blocks are uploaded; the rest are copied inside the storage. The result is a new file version.

This is a developer API: it is meant for backup and sync tools, not for clicking in the browser. Block sync is included in Premium GOLD, Business and Enterprise. See plans and pricing.

How to use it

  1. 1

    Read the API reference

    Open the delta-sync section at /docs/api.

  2. 2

    Send block fingerprints

    Your client reports hashes for each block.

  3. 3

    Upload changed blocks

    Only the blocks the server lacks are sent.

  4. 4

    Commit

    The file becomes a new version.

Pertanyaan yang sering diajukan

What block size?

Blocks of 8 to 64 MB.

Is there a UI?

No, it is an API for developers and sync tools.

Can I restore old content?

Yes, each result is a file version.

Which plans?

Premium GOLD, Business and Enterprise.

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Semua fitur · Paket dan harga · Tanya jawab

Sync huge files in minutes, not hours

Read the API reference and create a free account.

Buat akun gratis Paket dan harga

Gratis 25 GB. Tanpa kartu kredit.