Best Data Labeling Software in 2026
Updated
In short: LightlyStudio is ranked #1 of 24 as of 4 October 2026, ahead of Label Studio and Doccano. The best-ranked option with a free plan is Label Studio. The lowest first paid tier on this page is Datasaur at $0.42/mo.
Data labeling software supports annotation work across datasets, with options to compare by image, text, and audio/video annotation. Compared on those annotation types, model-assisted labeling, and review workflow, the listed criteria help you consider how labeling and review are handled. API or SDK access and deployment can inform how a tool fits your setup, while free plans and paid-from prices provide cost context. LightlyStudio, Label Studio, and Doccano are among the entries shown. Match the annotation formats and workflow criteria to the data you need to prepare, and consider whether the listed access and deployment details suit your environment.
24 data labeling software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Is your tool on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which data labeling software is ranked first on Specifiction?
LightlyStudio is ranked #1 of 24 with a score of 7.8. Label Studio is second and Doccano third.
How many of these have a free plan?
9 of the 24 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Datasaur has the lowest first paid tier we found: $0.42/mo.
How is this list ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing. Paid placements never change a rank.