Multi-stage editor
Build pipelines stage by stage, with the editable raw view right alongside.
Aggregation pipelines
Build MongoDB aggregation pipelines. Visually or in code.
Compose multi-stage aggregation pipelines in a stage editor, keep the raw pipeline editable, and run it against real documents — then read the explain plan to see how each stage executes.
Free & open source (Apache-2.0) · No telemetry · No account.
Step by step
From idea to result
Pick a collection
Start a new pipeline against any collection.
Add stages
Chain
$match,$group,$lookup,$project, and more in the multi-stage editor.Run and iterate
Execute against live data and refine stages as you go — the raw pipeline stays editable.
Explain the pipeline
Render the explain plan to see stage-by-stage execution and index usage.
Why MQLens
A real pipeline workbench
Visual query builder
For find, build filters/sort/projection visually next to the raw query.
Explain for aggregate
Visual plan tree for aggregations, so you can actually tune them.
Download MQLens — it's free
6,303 release asset downloads
Windows
DetectedRequires
Windows 10 or later (x64)
Install
Download the installer, run it, and launch MQLens from the Start menu.
macOS
DetectedRequires
macOS 11 (Big Sur) or later
Install
Download the .dmg, open it, and drag MQLens to your Applications folder.
Linux
DetectedRequires
Ubuntu 20.04+, Fedora 36+, or equivalent (x64)
Install
Debian/Ubuntu: install the .deb. Fedora/RHEL: install the .rpm. An AppImage is also available.
Point MQLens at your MongoDB cluster.
Free, open source, native — yours to inspect and run.
Download for free