Frontend Frameworks

promise-memoize

Memoizes promise-returning functions with expiration and prefetch capabilities.

Status
UnmaintainedNo commits in 3238 days.
Last checked
Checked · Oct 10, 2026
License
Open source
Pricing
Free tier · from $0

What it is

Promise-memoize is a utility that memoizes promise-returning functions, allowing for efficient caching of results. It supports expiration and prefetch mechanisms to enhance performance in asynchronous operations.

Promise-memoize stands out by providing a simple yet effective way to cache promise results with expiration and prefetch capabilities, making it ideal for optimizing asynchronous operations in Node.js applications.

When it fits — and when it doesn’t

A good fit for

  • Developers working on Node.js projects who need efficient caching of promise results

  • Teams building web applications that require optimized asynchronous operations

Look elsewhere if

  • Projects requiring real-time data updates without caching

  • Applications where the overhead of memoization outweighs performance benefits

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited documentation and examples

    The official repository lacks comprehensive usage guides and practical examples, making it difficult for new users to understand how to effectively use promise-memoize.

  2. 02

    Small community support

    Promise-memoize has a relatively small user base which results in limited community contributions, fewer bug fixes, and slower response times for issues reported on the repository.

  3. 03

    Potential memory leaks with improper expiration handling

    Improper configuration of cache expiration can lead to memory leaks if cached promises are not properly cleaned up, affecting long-running applications.

What it does well

  • Memoizes promise-returning functions

  • Supports expiration of cached results

  • Enables prefetching of results

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up promise-memoize

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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