Alternatives to Bun

3 editor-selected alternatives · Bun overview →

source: tools.alternatives · stored order · active records only; review scores are annotations and never change membership or order

A directional evidence panel appears only when the substitute rationale, trade-offs, sources, and verification date have been recorded. Older selections without that panel remain visible but are unclassified under the new evidence contract.

Steel

open sourcefreemiumexplicit relation

Steel is an open-source browser API purpose-built for AI agents, providing managed headless browser sessions with anti-bot bypass, proxy rotation, CAPTCHA solving, and session persistence. It handles the infrastructure layer that browser automation agents like Browser Use and Stagehand run on top of. Self-hostable or available as a cloud service. Over 6,000 GitHub stars.

Open-source browser sandbox (Apache-2.0) with $0 self-hosted deployment. Steel Cloud offers a Free tier with 100 browser hours/month ($30 starting credits). Paid usage is metered at ~$0.08/browser hour, with CAPTCHA solving starting at $1/1k solves and residential proxy bandwidth from $6/GB. Enterprise plans provide dedicated infrastructure, custom concurrency limits, and 24/7 SLA.

Trigger.dev

85/100open sourcefreemiumexplicit relation

Trigger.dev is an open-source platform for building and deploying background jobs, AI agents, and long-running workflows in TypeScript. It eliminates serverless timeouts with durable task execution, automatic retries, queue-based concurrency control, and elastic scaling. Used by 30,000+ developers at companies like MagicSchool and Icon.com, it processes hundreds of millions of agent runs monthly. Backed by a $16M Series A led by Dalton Caldwell's Standard Capital fund.

Trigger.dev offers a free tier with 10 concurrent runs and no task timeouts. Paid cloud tiers include Hobby at $10/month (25 concurrent runs, 100 schedules, 7-day logs), Pro at $50/month (100+ concurrency, 1,000 schedules, 30-day logs), and custom Enterprise plans with RBAC, SSO, and SOC 2 compliance.Review →

Dokploy

open sourcefreemiumexplicit relation

Dokploy is a free open-source platform-as-a-service for self-hosting applications without cloud vendor lock-in. It provides automated deployments from Git repositories, built-in SSL certificates, database provisioning, Docker and Docker Compose support, and a clean web dashboard for managing multiple applications on your own servers. With 18,000+ GitHub stars, it fills the gap for teams wanting Vercel-like deployment simplicity on their own infrastructure.

Free and open source for self-hosting (Apache-2.0). Dokploy Cloud offers managed control plane plans: Hobby at $4.50/server/mo (unlimited apps and databases), Startup at $15/mo for 3 servers ($4.50/additional server) with RBAC and 2FA, and custom Enterprise with SSO/SAML, SCIM, and dedicated support. Annual billing provides a 20% discount.

Open-source Bun alternatives

Steel, Trigger.dev, Dokploy — see all open-source developer tools.

Free Bun alternatives

Steel, Trigger.dev, Dokploy offer a free plan or free tier.

More Terminal & CLI Tools tools

same category, not editor-selected alternatives — see how Bun compares →

Claude CodeAnthropic's agentic CLI coding tool that delegates complex tasks to Claude directly from the terminal. Understands entire codebases via automatic context gathering, edits multiple files, runs shell commands, and manages Git workflows autonomously. Supports CLAUDE.md for persistent project instructions, integrates with VS Code and JetBrains, and runs on current Claude models such as Opus 5.5 and Sonnet 5.5 for complex architecture work. Built for terminal-first developers.GhosttyGPU-accelerated terminal emulator written in Zig by Mitchell Hashimoto (HashiCorp co-founder). Native UI rendering on macOS and Linux. Supports ligatures, true color, Kitty graphics protocol, and splits/tabs. Configurable via a simple key-value file with sensible defaults. Open-source with 20K+ GitHub stars and a focus on correctness, speed, and minimal resource usage. Growing as a modern alternative to iTerm2, Alacritty, and WezTerm.CodexCodex is OpenAI's coding agent for software development across the Codex app, editor, terminal, and cloud tasks. It helps write, review, debug, refactor, and automate code, with ChatGPT plan access for managed surfaces and API-key usage for CLI, SDK, and IDE workflows. The open-source CLI and SDK support local repository work, while cloud features add GitHub review, Slack/Linear integrations, worktrees, skills, MCP, and automations.WarpGPU-accelerated terminal built in Rust, now evolved into an Agentic Development Environment (ADE) used by 700K+ developers. Features block-based output navigation, AI command suggestions via the Oz orchestration engine, multi-line editing with syntax highlighting, and a built-in code editor with LSP support. Available on macOS, Linux, and Windows. Includes Warp Drive for sharing workflows, real-time session collaboration, and BYOK support for OpenAI, Anthropic, and Google API keys.CiliumCilium is a CNCF Graduated, Apache-2.0 project for Kubernetes networking, security, and observability using eBPF. It can replace kube-proxy, enforce identity-aware L3-L7 network policies, and add Hubble flow observability plus Tetragon runtime-security signals. Current source checks support GKE Dataplane V2 using Cilium/eBPF and Azure CNI Powered by Cilium for AKS.OrbStackOrbStack is a macOS application that replaces Docker Desktop with lightweight container and Linux VM management. Its docs emphasize fast starts, lower CPU and memory overhead, and native macOS integration with menu bar controls, file sharing, and network access to containers by name, with exact gains depending on workload. Supports Docker, Kubernetes, and full Linux VMs.RayRay is an open-source distributed computing framework built for scaling AI and Python applications from a laptop to thousands of GPUs. It provides libraries for distributed training, hyperparameter tuning, model serving, reinforcement learning, and data processing under a single unified API. Ray's public site highlights OpenAI and other enterprise users. Maintained by Anyscale with Apache-2.0 open-source licensing.ripgrepUltra-fast recursive text search tool written in Rust that respects .gitignore rules automatically. Searches directories significantly faster than grep with smart defaults like line numbers, syntax highlighting, and compressed file support. The de facto replacement for grep among developers, combining the speed of Rust with sensible defaults that eliminate the need for complex command-line flags.ActAct is an open-source tool that runs GitHub Actions workflows locally using Docker containers that match GitHub's execution environment. It provides instant feedback on workflow changes without pushing to a repository, supports matrix builds, secret management, and artifact handling. Act can also replace Makefiles by using workflow files as task definitions, making it useful for both CI/CD development and local task automation across development teams.

FAQ

Which Bun alternative is listed first?

Steel is first in the editor-selected list of 3 Bun alternatives. The stored order is editorial; review scores do not determine membership or position.

Are there open-source Bun alternatives?

Yes — Steel, Trigger.dev, Dokploy are open source.

Are there free Bun alternatives?

Yes — Steel, Trigger.dev, Dokploy offer a free plan or free tier.