Eraser vs Obsidian: Detailed Comparison (2026)

Choosing between Eraser and Obsidian is a common decision for teams evaluating software solutions. Eraser positions itself as docs and diagrams for engineering teams, while Obsidian focuses on being private, flexible note-taking with local-first storage. Eraser is a design tool that helps teams and businesses docs and diagrams for engineering teams. Compare Eraser features, pricing, pros and cons with alternatives to find the best fit for your needs. Obsidian has been available since 2020. Both platforms compete in the software space, but they take different approaches to solving user problems.

When it comes to pricing, Eraser offers a free plan with a freemium pricing model. Obsidian offers a free plan with Personal, Sync and Commercial plans available. Both tools provide free plans, making it easy to test each before committing. At the entry level, Obsidian is the more affordable option starting at $4/mo compared to $10/mo.

Users consistently praise Eraser for free plan available, very affordable starting price, strong user satisfaction ratings. On the other hand, Obsidian earns recognition for local-first, you own your data, powerful linking and graph view, huge plugin ecosystem. In terms of user satisfaction, Eraser holds a 4.5/5 rating from 189 reviews, while Obsidian has a 4.7/5 rating based on 440 reviews.

Who should choose Eraser? Eraser tends to be the better pick for teams of various sizes that prioritize free plan available and want to start for free. Who should choose Obsidian? Obsidian is often preferred by smaller organizations and individual users that value local-first, you own your data and appreciate having a free tier.

Ultimately, the choice between Eraser and Obsidian comes down to your specific requirements, budget, and team size. We recommend signing up for Eraser's free plan and Obsidian's free plan to test both platforms with your actual workflow before making a final decision. The feature comparison table and user ratings above should give you a solid starting point for narrowing down which software solution fits your needs best.