immutable-js / immutable-js
Immutable persistent data collections for Javascript which increase efficiency and simplicity.
immutable-js / immutable-js
immerjs / immer
Create the next immutable state by mutating the current one
dolthub / dolt
Dolt β Git for Data
codenotary / immudb
immudb - immutable database based on zero trust, SQL/Key-Value/Document model, tamperproof, data change history
linuxkit / linuxkit
A toolkit for building secure, portable and lean operating systems for containers
louthy / language-ext
C# pure functional programming framework - come and get declarative!
dinerojs / dinero.js
Create, calculate, and format money in JavaScript and TypeScript
vavr-io / vavr
vΚvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.
immutables / immutables
Java annotation processor to create immutable objects and builders, for records too. Sweep boilerplate code under the rug!
terminusdb / terminusdb
TerminusDB is a Knowledge Graph Database with Version Control. Time-travel, reason, collaborate, branch, merge, diff, and query your data with Datalog.
xtdb / xtdb
An immutable SQL database for application development, time-travel reporting and data compliance. Developed by @juxt
eclipse-collections / eclipse-collections
Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.
matthewp / robot
π€ A functional, immutable Finite State Machine library
rrousselGit / freezed
Code generation for immutable classes that has a simple syntax/API without compromising on the features.
mudler / edgevpn
:sailboat: The immutable, decentralized, statically built p2p VPN without any central server and automatic discovery! Create decentralized introspectable tunnels over p2p with shared tokens
IBM / fp-go
Functional programming library for Go 1.24+, inspired by fp-ts. Uses generic type aliases for a clean, composable API. Provides Option, Either, Result, IO, IOResult, Reader, and ReaderIOResult monads, plus optics (Lens, Prism, Traversal) for immutable data manipulation. Supports Functor, Applicative, and Monad abstractions with do-notation-style
unadlib / mutative
Efficient immutable updates, about 3-6x faster than Immer.
kairos-io / kairos
The immutable Linux meta-distribution for edge Kubernetes.
orium / rpds
Rust persistent data structures
babyfish-ct / jimmer
The most advanced ORM of JVM, for both java & kotlin
js-joda / js-joda
:clock2: Immutable date and time library for javascript
Kotlin / kotlinx.collections.immutable
Immutable persistent collections for Kotlin
cakephp / chronos
A standalone DateTime library originally based off of Carbon
Malix-Labs / Awesome-Atomic
An awesome curated knowledge-base about atomic systems
sirixdb / sirix
SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.
lxc / incus-os
Immutable Linux OS to run Incus
davidmoten / rtree
Immutable in-memory R-tree and R*-tree implementations in Java with reactive api
hashicorp / go-immutable-radix
An immutable radix tree implementation in Golang
superwesleyhys-ux / factcircuit
FactCircuit: an auditable claim-and-evidence verification loop with immutable provenance, staged checks, bounded retrieval, and reproducible evaluation.
lichess-org / scalachess
Chess API written in scala. Immutable and free of side effects.
clavia-labs / tardigrade
The TypeScript framework for building composable actors around an immutable event log.
crabbuild / silo
SILO: an immutable version-control ledger layered over S3-compatible object storage
Dicklesworthstone / franken_accounting
Universal, evidence-native double-entry accounting system of record in Rust on FrankenGraphDB: bitemporal, append-only with first-class restatements, exact money algebra, counterfactual branches, in-database forensic analytics, outsider-verifiable proofs, and an agent-first CLI/MCP surface for CPAs, regulators, litigators, and investigators.