Execute and manage your NLP annotations with ease


Why Choose LightTag?

Annotate faster, more accurately and at scale

Easy to use

LightTag's modern interface makes annotating easy. Keyboard shortcuts and optimized layouts means your team can work fast without making mistakes

Built for teams

LightTag makes annotating with a team simple. As a project manager you define how many annotators you'd like to work on each example.
LightTag will automatically allocate work accordingly, and let you aggregate annotations or view them on an annotator by annotator basis. You'll never need to assign work yourself or track which examples have been covered, LightTag does it for you.

Fully Managed and devops free

Our hosted solution is fully managed and includes daily backups with long retentions and a redundant cluster of servers to ensure high availbility.
You'll never have to configure a database or monitor a server. Additionally, each LightTag customer operates on an isolated LightTag instance on their own subdomain (you.lighttag.io)


It's not enough to gather data. You need to know what you have and spot problems early.
LightTag tracks your projects progess and reports inter annotator agreement as well as highlighting individual annotator performance

Use any Language

LightTag makes no assumptions about your data and fully supports RTL and CJK languages out of the box.
LightTag supports intra word annotations that are crucial for data with rich morphology as well as intra word annotations for capturing complex phrases.


Upload your own dictionariers, regular expressions or models to provide suggestions to your annotators.
Or let LightTag learn from your annotators as they go.




per user per month

  • Your own private, isolated LightTag server
  • Custom subdomain (you.lighttag.io)
  • API Access
  • Manage Multiple Projects Concurrently
  • Daily backups + 30 day retention
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On premise & large teams

  • Everything in Proffesional plus
  • On site installations
  • Integrate your own models
  • Concierge Onboarding
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Our Team

Ilan Bar Magen


Tal Perry

Founder and CEO

Maria Solowejtschik