Voyager vs Mempool.space
A detailed head-to-head comparison of Voyager and Mempool.space — pricing, features, and which one wins for different use cases.
Voyager
The original Starknet explorer, built by Nethermind
Voyager, built by Nethermind, is the original and semi-official block explorer for Starknet, the Cairo-based ZK-rollup. It provides transaction and address lookup, Cairo contract inspection and verifi…
Full review →Mempool.space
Open-source Bitcoin explorer and real-time mempool visualizer
Mempool.space is the most popular open-source Bitcoin block explorer and mempool visualizer, and it has become the default tool for understanding Bitcoin fee markets. Its signature feature is a live, …
Full review →Feature Comparison
| Feature | Voyager | Mempool.space |
|---|---|---|
| Transaction History | ✓ | ✓ |
| Contract Verification | ✓ | ✗ |
| Token Tracking | ✓ | ✗ |
| Nft Tracking | ✓ | ✗ |
| Api Access | ✓ | ✓ |
| Multi Chain Support | ✗ | ✗ |
| Gas Tracker | ✗ | ✓ |
| Source Code Viewer | ✓ | ✗ |
| Address Labels | ✓ | ✗ |
| Private Notes | ✗ | ✗ |
Voyager Pricing
Voyager
Free
Free
- ✓Full Starknet explorer
- ✓Cairo contract verification
- ✓Account-abstraction tx decoding
- ✓Class/instance exploration
- ✓Developer API
Mempool.space Pricing
Mempool.space
Free
Free
- ✓Open-source Bitcoin explorer
- ✓Live mempool + fee estimation
- ✓Lightning Network exploration
- ✓Mining pool statistics
- ✓Self-hostable; enterprise tier available
Verdict: Which Should You Choose?
Voyager is the better pick if you need original, nethermind-backed starknet explorer. Mempool.space wins when best-in-class bitcoin fee estimation and mempool visualization. Both are production-ready — the right choice depends on your team's workflow and budget.