# lsyncd vs Syncthing

**Leader by vioscaleAI score:** Syncthing

| Attribute | lsyncd | Syncthing |
|---|---|---|
| **vioscaleAI score** | 29.5 (32% (low)) | 56 (58% (medium)) |
| activity.commits_last_30d | 0 | 16 |
| adoption.dependent_repos | 3 | 175 |
| adoption.github_stars | 6,067 | 89,382 |
| content.faq | `[{"answer":"Lsyncd actively watches local file systems for modifications using filesystem event interfaces, then automatically copies those changes to remote systems. It supports rsync and rsync+ssh as synchronization protocols and offers customization through configuration files and Lua scripting. It is indexed under File Sync.","source":"https://lsyncd.github.io/lsyncd","question":"What is lsyncd?","confidence":0.6},{"answer":"lsyncd is open source, so it can be self-hosted and used at no licence cost. It is released under the GPL-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://lsyncd.github.io/lsyncd","question":"Is lsyncd free to use?","confidence":0.6},{"answer":"Yes. lsyncd can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://lsyncd.github.io/lsyncd","question":"Can lsyncd be self-hosted?","confidence":0.6},{"answer":"Yes. lsyncd is published under the GPL-2.0 licence, a copyleft licence, so check its terms before embedding it in a closed-source product. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/lsyncd/lsyncd","question":"Is lsyncd open source?","confidence":0.95}]` | `[{"answer":"Syncthing automatically synchronizes files between multiple computers in real-time while encrypting all communication and storing data only on your own devices. It operates without central servers, giving you complete privacy and control over where your data is stored and who can access it. It is indexed under File Sync.","source":"https://syncthing.net","question":"What is Syncthing?","confidence":0.6},{"answer":"Syncthing is open source, so it can be self-hosted and used at no licence cost. It is released under the MPL-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://syncthing.net","question":"Is Syncthing free to use?","confidence":0.6},{"answer":"Syncthing supports the web, Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://syncthing.net","question":"What platforms does Syncthing support?","confidence":0.6},{"answer":"Yes. Syncthing can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://syncthing.net","question":"Can Syncthing be self-hosted?","confidence":0.6},{"answer":"Yes. Syncthing is published under the MPL-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/syncthing/syncthing","question":"Is Syncthing open source?","confidence":0.95}]` |
| deployment.options | `{"self_hosted":true}` | `{"on_prem":true,"self_hosted":true}` |
| description.long | Watches a local directory tree for changes using filesystem event notifications (inotify or fsevents) and efficiently synchronizes them to a remote target using rsync or SSH, without requiring block-level mirroring or filesystem modifications. | Syncthing automatically synchronizes files between multiple computers in real-time while encrypting all communication and storing data only on your own devices. It operates without central servers, giving you complete privacy and control over where your data is stored and who can access it. |
| features.capabilities | `{"pricing_model":"free_open_source","deployment_model":"self_hosted","peer_to_peer_p2p_network_routing":false,"block_level_delta_sync_transfer_speed":false}` | `{"pricing_model":"free_open_source","deployment_model":"p2p_client","peer_to_peer_p2p_network_routing":true,"aws_s3_azure_blob_external_mounts":false,"active_directory_ldap_identity_sync":false,"self_hosted_linux_docker_deployment":true,"client_server_architecture_cloud_host":false,"end_to_end_encryption_keys_in_transit":true}` |
| language.primary | Lua | Go |
| license.spdx | GPL-2.0 | MPL-2.0 |
| platform.support | `{"cli":true,"mac":true,"linux":true}` | `{"cli":true,"mac":true,"web":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://lsyncd.github.io/lsyncd","retrievedAt":"2026-08-20T16:37:11.845Z"}` | `{"type":"open_source","summary":"Free and open source","freeTier":true,"sourceUrl":"https://syncthing.net","retrievedAt":"2026-08-21T12:45:46.864Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | 162 | 7 |
| release.history | `[{"url":"https://github.com/lsyncd/lsyncd/releases/tag/v2.3.1","date":"2022-11-17T02:10:40Z","type":"stable","version":"v2.3.1"},{"url":"https://github.com/lsyncd/lsyncd/releases/tag/v2.3.0","date":"2022-06-07T21:49:00Z","type":"stable","version":"v2.3.0"}]` | `[{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.7-rc.2","date":"2026-10-13T07:31:50Z","type":"prerelease","version":"v2.1.7-rc.2"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.7-rc.1","date":"2026-10-08T07:15:17Z","type":"prerelease","version":"v2.1.7-rc.1"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.6","date":"2026-10-06T06:08:27Z","type":"stable","version":"v2.1.6"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.6-rc.4","date":"2026-09-30T07:55:44Z","type":"prerelease","version":"v2.1.6-rc.4"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.6-rc.3","date":"2026-09-22T13:13:35Z","type":"prerelease","version":"v2.1.6-rc.3"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.6-rc.1","date":"2026-09-15T12:18:28Z","type":"prerelease","version":"v2.1.6-rc.1"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.5","date":"2026-09-08T07:35:00Z","type":"stable","version":"v2.1.5"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.4-rc.2","date":"2026-08-24T19:15:28Z","type":"prerelease","version":"v2.1.4-rc.2"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.4-rc.1","date":"2026-08-19T10:39:46Z","type":"prerelease","version":"v2.1.4-rc.1"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.3","date":"2026-08-05T13:06:38Z","type":"stable","version":"v2.1.3"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.3-rc.3","date":"2026-08-03T22:03:26Z","type":"prerelease","version":"v2.1.3-rc.3"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.3-rc.2","date":"2026-07-28T06:32:24Z","type":"prerelease","version":"v2.1.3-rc.2"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.3-rc.1","date":"2026-07-21T05:03:07Z","type":"prerelease","version":"v2.1.3-rc.1"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.2","date":"2026-07-08T13:43:41Z","type":"stable","version":"v2.1.2"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.2-rc.4","date":"2026-06-26T06:04:03Z","type":"prerelease","version":"v2.1.2-rc.4"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.2-rc.3","date":"2026-06-23T10:04:39Z","type":"prerelease","version":"v2.1.2-rc.3"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.2-rc.2","date":"2026-06-13T06:47:21Z","type":"prerelease","version":"v2.1.2-rc.2"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.2-rc.1","date":"2026-06-12T07:20:25Z","type":"prerelease","version":"v2.1.2-rc.1"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.1","date":"2026-06-02T11:50:30Z","type":"stable","version":"v2.1.1"},{"url":"https://github.com/syncthing/syncthing/releases/tag/v2.1.1-rc.1","date":"2026-05-25T13:35:09Z","type":"prerelease","version":"v2.1.1-rc.1"}]` |
| security.scorecard | - | 5.8 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=homebrew&package_name=lsyncd&per_page=100","last_12m":0,"max_severity":null}` | `{"count":3,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fsyncthing%2Fsyncthing&per_page=100","last_12m":0,"max_severity":"HIGH"}` |

## Capabilities (File Sync)

| Capability | lsyncd | Syncthing |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Deployment model | Self hosted | P2p client |
| Peer to peer p2p network routing | ✗ | ✓ |
| Client server architecture cloud host | - | ✗ |
| Block level delta sync transfer speed | ✗ | - |
| Self hosted linux docker deployment | - | ✓ |
| Synology qnap nas hardware integration | - | - |
| Aws s3 azure blob external mounts | - | ✗ |
| Active directory ldap identity sync | - | ✗ |
| Version history and conflict resolution | - | - |
| End to end encryption keys in transit | - | ✓ |
| SOC2 type ii | - | - |
| ISO 27001 | - | - |
| Pricing model | Free open source | Free open source |

*Source: vioscaleAI. Generated 2026-10-16T01:06:11.695Z. "-" = undocumented, not absent.*