Real-time / WebSocket Infrastructure
The clearest split is that 100ms uses a subscription model and Yjs uses a free model. 100ms is Real-time / WebSocket Infrastructure tool for developers; Yjs is CI/CD for Applications tool for developers. Specializes in Collaborative Editing (CRDT). The data points 100ms at chat applications and live collaboration features, and Yjs at automated build/test/deploy pipelines and team collaboration on code. Pricing: 100ms is subscription from $500 per month; Yjs is free, free tier. Lock-in is low for 100ms and low for Yjs, with DX at 4/5 vs 5/5 and transparency at 3/5 vs 5/5. On listed strengths, 100ms emphasises chat applications and live collaboration features, and Yjs emphasises managed pub/sub infrastructure removes server ops burden. Only 100ms lists an enterprise tier in the data. Honest trade-off: 100ms is not for static projects; Yjs is not for purely request-response apps with no real-time needs, so confirm the fit first, then weigh the pivotal factor above against your budget and lock-in tolerance.
Quick take
100ms is for chat applications; Yjs is for apps with live features: chat, collaboration, gaming; decide based on which pricing model fits your budget.
 100ms | | |
|---|---|---|
| Category | Real-time / WebSocket Infrastructure | Real-time / WebSocket Infrastructure |
| Pricing Model | subscription | free |
| Entry Price | $500 per month | — |
| Free Tier | Yes | Yes |
| Billing Complexity | — | — |
| Developer Experience | 4/5 | 5/5 |
| Pricing Transparency | 3/5 | 5/5 |
| Lock-in Level | low | low |
| Migration Complexity | — | — |
| Data Portability | — | — |
| Enterprise | Available | — |
| GitHub Stars | 203 | — |
| License | MIT | — |
Choose 100ms if a subscription pricing model fits your procurement and your workload matches chat applications. Skip it if your context is static projects.
Not for: Static projects
Choose Yjs if a free pricing model fits your procurement and your workload matches apps with live features: chat, collaboration, gaming. Skip it if your context is purely request-response apps with no real-time needs.
Not for: Purely request-response apps with no real-time needs
Check each tool's dedicated page for deeper reviews, setup notes, and pros/cons.
Entry pricing is listed as $500 per month for 100ms and unknown for Yjs. Both offer a free tier for getting started. Total cost at scale depends on usage and plan details that are not in this dataset, so confirm with each vendor.
100ms is tagged with low lock-in (proprietary real-time sdk with custom session model; migration requires rewrite). Yjs is tagged with low lock-in (oss crdt library). Both sides are low lock-in, so a migration is feasible but still needs planning around data export and SDK rewrites.
The dataset rates Yjs at 5/5 for developer experience and 100ms at 4/5, so Yjs scores higher. That score reflects overall polish rather than any single integration, so trial both against your stack before committing.
Yjs is listed as fitting apps with live features: chat, collaboration, gaming, which overlaps with but is not identical to 100ms's scope. Yjs is flagged as not for purely request-response apps with no real-time needs, so confirm your context does not fall there.
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