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Memcached

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High-performance distributed memory caching system

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Reviews onG2
17 reviews tracked

The Bottom Line

Entry price

Paid plans only

Biggest pro

Extremely fast

Biggest con

No persistence

TL;DR - Memcached

  • Memcached is a free, open-source, high-performance, distributed memory object caching system.
  • It functions as an in-memory key-value store for small data chunks, primarily to speed up dynamic web applications by reducing database load.
  • Memcached allows applications to utilize a shared virtual pool of memory across multiple servers, improving cache efficiency and scalability.
Pricing: open_source
Best for: Enterprises & pros
4.7/5 across review platforms

What is Memcached?

Editorial review
Memcached is a free, open-source, high-performance, distributed memory object caching system. It speeds up dynamic web applications by alleviating database load through caching data and objects in RAM.
how we evaluateSourcememcached.org ↗

Pros & Cons

Pros

  • Extremely fast
  • Simple to use
  • Battle-tested at scale
  • Low memory overhead

Cons

  • No persistence
  • No built-in replication
  • Limited data structures

Ratings Across the Web

4.7(17 reviews)

Memcached holds an aggregate rating of 4.7 out of 5 from 17 reviews across G2, last checked March 19, 2026.

G217 reviews
4.7/5

Ratings aggregated from independent review platforms. Learn more

Key Features

In-memory cachingDistributed architectureSimple key-value storageMulti-threaded performanceBinary and text protocol

Pricing Plans

Pricing checked Aug 23, 2026

Open Source

Free

  • BSD licensed
  • High-performance caching
  • Multi-threaded architecture
  • Production ready
Calculate your costView full pricing

Is Memcached worth the price?

100/100

Memcached's pricing is exceptionally generous, as it is entirely open-source and free.

There are no direct costs associated with using the core Memcached software itself. This makes it an ideal solution for any organization looking for a high-performance caching system without budget constraints for the software license.

Hidden Costs & Gotchas

Infrastructure hosting costs (servers, network)

Operational overhead for maintenance

Developer time for setup/configuration

Potential support costs from third parties

How Memcached Compares to Competitors

Compared to commercial caching solutions like Redis Enterprise or AWS ElastiCache (for Memcached), the open-source Memcached offers a significant cost advantage of $0 for the software. While Redis Enterprise can start from hundreds to thousands of dollars per month depending on features and scale, and AWS ElastiCache incurs infrastructure costs, Memcached itself remains free, making it a highly competitive option for those willing to self-host.

Reviews

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4.7/5

Across 17 verified user reviews on G2

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Best Memcached Alternatives

Top alternatives based on features, pricing, and user needs.

Hazelcast logo
HazelcastFreemium

Real-time data platform for streaming and memory

4.5
See all developer tools →

Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

Memcached vs HazelcastHead-to-head: features, pricing, who wins

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Memcached FAQ

How does Memcached improve web application performance?

Memcached speeds up dynamic web applications by caching data and objects directly in RAM. This process alleviates database load, allowing applications to retrieve frequently accessed information much faster.

Which teams benefit most from using Memcached?

Teams developing dynamic web applications, especially those experiencing high database load, will find Memcached most beneficial. It is particularly useful for applications requiring high performance and low latency data access.

How is Memcached priced?

Memcached is available on both free and paid plans. The core system is open-source and free to use, with paid plans typically referring to managed services or commercial support offerings.

What kind of data structures does Memcached support?

Memcached offers limited support for complex data structures. Its primary function is to store objects as key-value pairs in memory for quick retrieval.

Can Memcached ensure data availability if a server fails?

Memcached does not include built-in replication, meaning it does not inherently ensure data availability if a server fails. It also lacks persistence, so cached data is lost upon server restart or failure.

How does Memcached compare to Hazelcast for caching needs?

Memcached is known for its extreme speed and simplicity in distributed memory object caching, often used to alleviate database load. Hazelcast, while also a caching solution, typically offers more advanced features like data persistence and complex data structures, which Memcached does not provide.

Source: memcached.org

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