LSyncer icon LSyncer
Fast folder sync for developers on macOS

Sync development folders without fighting your tooling.

If you work with node_modules, .git, or large codebases, you already know the problem: traditional sync tools struggle with complex development projects. LSyncer is designed to handle exactly that.

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Thousands of small filesLocal-first syncSmart exclusions
LSyncer interface showing schedules, settings, and menu bar status.

Development workflows are different.

Thousands of small files, constant changes, and local dependencies can overwhelm traditional sync tools. LSyncer keeps your folders in sync reliably, locally, and on your terms.

Built for development folders. Sync thousands of files fast without slowdown or broken workflows.

  • No unnecessary uploads
  • No cloud bottlenecks
  • No unpredictable sync issues

Just fast, controlled synchronization.

The app focuses on the pieces that matter most when your folders contain active code, local dependencies, caches, and build output.

Optimized for development folders

Handles thousands of small files without the slowdown that makes general-purpose sync tools frustrating.

Scheduled sync

Run automatically on startup, on a schedule, or while you are away so synchronization does not interrupt your work.

Smart exclusions

Skip node_modules, .git, venv, build files, caches, and any other data you do not want copied around.

Clear sync status and notifications

Get notified quickly when sync fails, when a folder becomes outdated, or when something needs attention.

Simple setup

Select folders, define rules, and start syncing in seconds without building a fragile workflow around the tool.

See the current sync state without guessing.

LSyncer does not fail silently. It surfaces the status details that make background automation actually trustworthy.

Know when a sync fails

Failures are visible right away so you are not left assuming everything is fine when a destination has quietly drifted.

LSyncer run logs showing recent sync results and visible status details.

See how long folders have been out of sync

Stale status and recent activity make it easy to spot when a schedule has not run recently or a folder needs attention.

LSyncer interface showing schedules, settings, and current sync state.

Set rules that match developer projects

Exclusions help you keep working copies clean while avoiding unnecessary churn from dependencies, repos, and generated output.

LSyncer exclusions screen showing ignored folders and patterns.

Real use cases

LSyncer fits the practical folder-sync jobs developers and technical users already do every day.

  • Backup development projects locally
  • Sync work between folders, disks, or environments
  • Keep your iCloud copy clean and free from unnecessary files
  • Maintain fast, predictable workflows

Local by default. Helpful when you need it.

Privacy, diagnostics, and permissions are presented as explicit choices instead of hidden tradeoffs.

Privacy

LSyncer works entirely on your device. No tracking, no analytics, and no external servers involved in the core sync workflow.

Diagnostics

If something goes wrong, you can choose to send a diagnostic report. Logs are optional, reports are voluntary, and file contents are never included.

Important notes

Folder access is required to perform synchronization. Background sync is optional and disabled by default.