---
name: "desync-make"
section: "1"
platform: "linux"
package: "desync"
version: "1.1.5-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/desync-make"
---

# desync-make(1)

Chunk input file and create index

## NAME

desync-make - Chunk input file and create index

## SYNOPSIS

**desync make \<index\> \<file\> \[flags\]**

## DESCRIPTION

Creates chunks from the input file and builds an index. If a chunk store is provided with -s, such as a local directory or S3 store, it splits the input file according to the index and stores the chunks. Use '-' to write the index to STDOUT.

## OPTIONS

**--ca-cert**=""\
 	trust authorities in this file, instead of OS trust store

**-r**, **--cache-repair**\[=true\]\
 	replace invalid chunks in the cache from source

**-m**, **--chunk-size**="16:64:256"\
 	min:avg:max chunk size in kb

**--client-cert**=""\
 	path to client certificate for TLS authentication

**--client-key**=""\
 	path to client key for TLS authentication

**-n**, **--concurrency**=10\
 	number of concurrent goroutines, -1 to let desync choose: the number of CPUs for chunking and hashing, adapting to each store up to 128 for transfers

**-e**, **--error-retry**=3\
 	number of times to retry in case of network error

**-b**, **--error-retry-base-interval**=500ms\
 	initial retry delay, increases linearly with each subsequent attempt

**-h**, **--help**\[=false\]\
 	help for make

**--print-stats**\[=false\]\
 	print chunking statistics to stderr when done

**-s**, **--store**=""\
 	target store

**-t**, **--trust-insecure**\[=false\]\
 	trust invalid certificates

## OPTIONS INHERITED FROM PARENT COMMANDS

**--config**=""\
 	config file (default $HOME/.config/desync/config.json)

**--digest**="sha512-256"\
 	digest algorithm, sha512-256 or sha256

**--verbose**\[=false\]\
 	verbose mode

## EXAMPLE

```
  desync make -s /path/to/local file.caibx largefile.bin
  desync make -m 8:32:128 - largefile.bin > file.caibx
```

## SEE ALSO

**[desync(1)](/desync/1.md)**

## HISTORY

20-Oct-2026 Auto generated by spf13/cobra