The top pick is open source, and its hosted plan costs $99 a month.

Nine platforms were scored on data types, AI-assisted labeling, quality control, security and price.

Prices are as of 25 September 2026, per theexpertranking.com.

Does it handle your data type?

Does it keep labels accurate?

What will it cost each month?

🔴 S TIER

Label Studio

Named the best data labeling tool for most teams in September 2026 (theexpertranking.com)

Open source (Apache 2.0); labels text, images, audio, video and time series in one editor

Hosted Starter Cloud plan costs $99/month

⏳ NOT RANKED YET

Labelbox

Pick for LLM and multimodal data; $0.10 per unit after 500 free units a month (theexpertranking.com) CVAT

Pick for computer vision on a small budget (theexpertranking.com) Encord

Pick for medical, video and 3D data; pricing is custom (theexpertranking.com)

What this means for your team:

Start with Label Studio if you need one tool for text, images, audio and video.

Choose Labelbox only if LLM or multimodal…