head to head · open source
valkey vs predis
valkey has 27,258 GitHub stars, 1,318 forks, 894 open issues and last shipped today. predis has 7,778 stars, 997 forks, 25 open issues and last shipped 3 days ago. valkey leads on adoption by 250% (27,258 vs 7,778 stars). valkey is written in C under BSD-3-Clause; predis is written in PHP under MIT. valkey has attracted 5% as many forks as stars, predis 13%. valkey was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (redis), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| valkey | predis | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 7.8K |
| License | BSD-3-Clause | MIT |
| Written in | C | PHP |
| Last push | 2026-09-20 | 2026-09-17 |
| Forks | ⑂ 1.3K | ⑂ 997 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick valkey if
- You weight community size — 27K stars and counting
- You want the BSD-3-Clause license terms
- Your stack matches C
- You value the larger contributor base for long-term maintenance
pick predis if
- You want the predis feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and predis fits your workflow better
About valkey
Valkey is high performance data structure server. Serves key/value workloads first. Supports wide range of native structures plus extensible plugin system for new data structures and access patterns. Written in C, licensed BSD 3 Clause. Lives in key value store and NoSQL ecosystem, shares protocol lineage with Redis, and carries cache , database , key value store , redis , valkey client topics.
read the full valkey overview →
About predis
Predis is a flexible, feature complete Redis and Valkey client for PHP 7.2 and newer, distributed as the Composer package predis/predis under the MIT licence.
read the full predis overview →
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Frequently asked questions
Is valkey or predis more popular?
valkey has 27,258 GitHub stars and predis has 7,778. valkey has the larger community by that measure.
Are valkey and predis free?
Both are open source. valkey is licensed under BSD-3-Clause and predis under MIT. Neither carries a licence fee.
What is the difference between valkey and predis?
valkey is written in C and predis in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, valkey or predis?
Choose valkey if you want the larger community (27,258 stars) or its BSD-3-Clause licence terms. Choose predis if its feature set, stack or MIT licence fits better. Both are self-hostable.