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Life & fun · December 2, 2025

SafePool – Type-safe object pooling for Go

Frequent memory allocations can be costly in Go. Go's sync.Pool helps with object reuse but isn't type-safe and can introduce bugs. You need type assertions, and it's easy to accidentally return objects twice or forget to return them at all. SafePool provides type safety with Go generics, eliminating the need for type assertions and making pool usage safer and clearer. For objects that need to live across function boundaries, we added PoolManager. It tracks all objects obtained from pools and ensures they're all returned when the manager is cleaned up, preventing leaks across function calls.…

SafePool – Type-safe object pooling for Go launched on December 2, 2025 with 6 votes, #1,714 of 11,628 launches that month and more than 75% of that year's launches.

Visit github.com ↗Alternativestop 15% of December 2025

What it does

sync.Pool made easy. Contribute to oodle-ai/safepool development by creating an account on GitHub.

import "github.com/oodle-ai/safepool" // Example 1: Byte buffer. bufPool := safepool . NewPool [bytes. Buffer ]() buf := bufPool . Get () defer bufPool . Put ( buf ) ... // Example 2: List of structs. listPool := safepool . NewPool [safepool. List [ TestStruct ]]() list := listPool . Get () defer listPool . Put ( list ) elem1 := list . AppendNewDirtyElem () elem1 . A = 1 elem2 := list . AppendNewDirtyElem () elem2 . A = 2 ... // Example 3: List of integers. intListPool := safepool . NewPool [safepool. ListVal [ int ]]() intList := intListPool . Get () defer intListPool . Put ( intList ) intList . HardResetAndResizeTo ( 2 ) intList . Elems [ 0 ] = 1 intList . Elems [ 1 ] = 2 Pool Manager…from github.com

In the maker’s words, at launch

Frequent memory allocations can be costly in Go. Go's sync.Pool helps with object reuse but isn't type-safe and can introduce bugs. You need type assertions, and it's easy to accidentally return objects twice or forget to return them at all. SafePool provides type safety with Go generics, eliminating the need for…

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