Dev tools · alternatives · 2026
24 alternatives to Firecracker
Secure and Fast microVM for Serverless Computing
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Firecracker launched in 2018; newer entries below may have overtaken it.
- 1
Build a Firecracker microVM from a container image - alexellis/firecracker-init-lab
2022 · github.com · its alternatives →
- 2
2025 · bottlefire.dev · its alternatives →
- 3
Webapp.io is a DevOps platform for developers of modern webapps.
2023 · webapp.io · its alternatives →
- 4
I wanted to see how fast an isolated code sandbox could start if I never had to boot a fresh VM. So instead of launching a new microVM per execution, I boot Firecracker once with Python and numpy already loaded, then snapshot the full VM state. Every execution after that creates a new KVM VM backed by a `MAP_PRIVATE` mapping of the snapshot memory, so Linux gives me copy-on-write pages automatically. That means each sandbox starts from an already-running Python process inside a real VM, runs the code, and exits. These are real KVM VMs, not containers: separate guest kernel, separate guest…
Mar 2026 · github.com · its alternatives →
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2019 · github.com · its alternatives →
- 6OF
Hello, HN community, I'm really excited to show you Open Fire a serverless CI, how does it work? relying on serverless technologies (firecracker) we can spin up a new VM in less than 200 ms running in a more powerful and newest CPU on the market, just change 1 line of code on your GitHub Actions Workflow and you're up and running! You can see our use case, where we implemented Open Fire in the NextJS repo taking down build time from 1 hour 17 minutes to 26 minutes which is a 66 % of improvement without any engineering effort! [1] The value of a CI/CD Pipeline is inversely proportional…
2023 · open-fire.dev · its alternatives →
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🪄 Spin up ready-to-code, disposable dev environments on your own servers. Self-hosted alternative to Gitpod and Github Codespaces. - hocus-dev/hocus
2023 · github.com · its alternatives →
- 10
Branchable computing by using a portable, lightweight, self-contained virtual machine - smol-machines/smolvm
Apr 2026 · github.com · its alternatives →
- 11
InstaVM▲109Teaching AI agents to find security vulnerabilities by distilling 4,000 paid HackerOne bug bounty reports — from PDF cracking to API hacking with CLI tools.
May 2026 · instavm.io · its alternatives →
- 12
Build and run tiny vms from Dockerfiles. Small and sleek. - ottomatica/slim
2019 · github.com · its alternatives →
- 13
ByteNite▲206Hi HN, I’m one of the creators of ByteNite (https://bytenite.com). We built it for developers running compute-heavy containerized workloads (AI, ETL, batch jobs) who are frustrated with the limitations of traditional serverless platforms: timeouts, cold starts, orchestration complexity, and limited runtime control. ByteNite is a serverless platform that lets you submit distributed jobs packaged as Docker containers. You define simple or complex fan-out/fan-in logic, set your hardware requirements, and we handle the rest—distributing execution across warm cloud runners (CPUs,…
2025 · docs.bytenite.com · its alternatives →
- 14
We have built Tarit as a hypervisor built from ground up for running AI agent and RL environments. It is based on rust-vmm and can be used as a replacement for firecracker. Firecracker was built to serve a different need of primarily serverless compute and hence does not have primitives like live snapshots without pausing the VM operations. We also provide a basic orchestrator that handles placement of the microVMs, creating clusters with HA, maintaining a warm pool of VMs, and takes care of setting up networking and monitoring. Our benchmarks on a metal instance shows an acquire VM from…
Jul 2026 · github.com · its alternatives →
- 15
#nocode #web-builder #ai-web-builder #low-code #no-code #AI
2025 · pandastack.ai · its alternatives →
- 16
Bhatti spins up Linux VMs on any box with KVM — Pi 5, Hetzner AX, cloud VM with nested virt. - Each VM has its own kernel, filesystem, and IP - Idle VMs pause their CPUs and snapshot themselves to disk; the next request wakes them in 3.7ms warm or 360ms cold (p50, Hetzner AX102) - Publish any port → public URL with auto-wake on first hit - Pull any OCI/Docker image as a rootfs, or save a running sandbox as one - Multi-tenant from day one — per-user bridges, encrypted secrets, rate limits - Single Go binary, Apache 2.0 The decisions page is the most fun read on the site: vsock state…
May 2026 · bhatti.sh · its alternatives →
- 17
Create microVMs from OCI images. Contribute to slp/krunvm development by creating an account on GitHub.
2021 · github.com · its alternatives →
- 18
A fast, rootless sandbox and virtual resource runtime for any workload, including untrusted and AI-generated code. Daemonless: a real, kernel-enforced container in ~3.5 ms from an OCI image, out of one static binary - getkern/kern
Aug 2026 · github.com · its alternatives →
- 19
**PROTOTYPE** FreeBSD Jail/ZFS based implementation of the Application Container Specification - 3ofcoins/jetpack
2015 · github.com · its alternatives →
- 20
Spin up secure sandboxes in ~100 ms
Nov 2025 · hopx.ai · its alternatives →
- 21
Unifies Cloud Management and Governance
2017 · jamcracker.com · its alternatives →
- 22
High performance secure & portable Rust functions in Node.js
2020 · secondstate.io · its alternatives →
- 23
:aerial_tramway: Minimal linux container runtime. Contribute to flouthoc/vas-quod development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 24
Announcing Appwrite 0.14 with 11 Cloud Function Runtimes! 🥳
2022 · github.com · its alternatives →
Also compare
- Firecracker Lab – Build a microVM from a container image alternatives
- Bottlefire – Build single-executable microVMs from Docker images alternatives
- Webapp.io - Free firecracker-based full-stack hosting alternatives
- Sub-millisecond VM sandboxes using CoW memory forking alternatives
- microvm – a minimalist machine type for QEMU inspired by Firecracker alternatives
- Open Fire Serverless CI alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →