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Vott

Vott is an open-source application for annotating images and video frames to prepare labeled data for object-detection models.

Independent OpenViST project profile, based on linked sources.

Vott — OpenViST project profile in AI Data & Analytics.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Vott when a project needs a desktop-oriented workflow for labeling visual assets and preparing object-detection data. Consider the archived, unmaintained status before adopting it for ongoing work.

Who it is for

  • Machine-learning teams preparing visual training datasets.
  • Annotators who need to label images or video frames and export the resulting data.

Documented uses

  • Label objects in images and video frames.
  • Set project tags and configure asset-source and export-target connections.
  • Import visual assets from supported local or cloud sources and export labeled data to configured targets.
Before you choose

Requirements & limits

  • The README lists local file system, Azure Blob Storage, and Bing Image Search as supported connection types.
  • The browser version cannot access local files and requires cloud-project imports and exports.
  • The repository documents native packages for Windows, Linux, and macOS, alongside running from source.
  • The repository is archived and the README states that VoTT is no longer maintained.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Start VoTT from its source repository

Launch the locally sourced application using the repository's documented setup steps.

Before you start

  • Node.js version 10 or later
  • npm

Steps

  1. Clone the Microsoft/VoTT repository.

  2. Change into the VoTT directory.

  3. Run npm ci.

  4. Run npm start.

Expected outcome

The documented local start launches both Electron and browser versions; Electron can access the local file system.

Guide limitations

  • The project is no longer maintained and its repository is archived.
  • The repository instructions do not establish compatibility with current runtime versions.
Evidence and transparency

Sources & review

Source record details
Source availability
Active
Sources checked
12 October 2026
Original website title
microsoft/VoTT · Official homepage title · retained in its source language