PixLab Annotate

Spec sheet

Purpose

PixLab Annotate is a browser-based image labeler for creating bounding boxes and polygon segmentation labels for machine learning datasets.Read 9 Oct 2026 · pixlab.io

Support

The app page says feature and support requests can be made through the PixLab GitHub repository.Read 9 Oct 2026 · annotate.pixlab.io

Maker

PixLab identifies Symisc Systems, SUARL as its maker and says its SaaS business began with PixLab in 2017.Read 9 Oct 2026 · symisc.net

Account requirement

The tool says no account is required to load images, create labels, or export annotation data.Read 9 Oct 2026 · pixlab.io

Annotation tools

The tool provides rectangle and polygon labeling, plus zoom, drag, full-screen display, snapshots, and an eraser.Read 9 Oct 2026 · pixlab.io

Batch labeling

You can select multiple images from a device folder and move through them sequentially in the browser.Read 9 Oct 2026 · pixlab.io

Export

The tool exports structured JSON with annotation coordinates, rectangle geometry, and label metadata for adaptation to a machine learning pipeline.Read 9 Oct 2026 · pixlab.io

Labels and history

You can create and manage labels with names and colors, review annotation history, and undo or redo changes.Read 9 Oct 2026 · pixlab.io

Local processing

PixLab says source images are processed in the browser and are not transferred to PixLab servers.Read 9 Oct 2026 · pixlab.io

Saved work

Annotation state is stored in browser storage and can be resumed in the same browser on the same device; clearing that storage removes the saved state.Read 9 Oct 2026 · pixlab.io

Supported use cases

The maker describes the tool as useful for developers, researchers, ML engineers, dataset preparation, small teams, QA review, and classroom training.Read 9 Oct 2026 · pixlab.io

Plans and prices

Every PixLab Annotate plan and price →

Where Specifiction places it

• Image Annotation Software#23 of 287.2