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Best E2B Alternatives

53 dev tools you can use instead of E2B. Ranked by popularity, tag overlap, and live GitHub signals.

sandboxingcode-executioncloudsecuritypythontypescript
E

E2B

Reference

Secure cloud sandboxes for AI-generated code execution — 11K+ stars

11.5Ktoday44
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Top Alternatives to E2B

C

CUA

Open-source infrastructure for Computer-Use Agents with sandboxes and benchmarks — 13K+ stars

OSSFree
trycua
13.3Ktoday54
2 shared tags
O

Open Terminal

A computer you can curl — cloud terminal sandbox by Open WebUI — 800+ stars

OSSFree
Open WebUI
2.1Ktoday2
2 shared tags
C

Cognitive Firewall

Hybrid edge-cloud security defense against prompt injection attacks on browser AI agents

OSSFree
Research Team
2 shared tags
C

Crawl4AI

Open-source web crawler optimized for LLMs and AI agents — 62K+ stars

OSSFree
unclecode
63.1Ktoday72
1 shared tag
F

Firecrawl

Web scraping API built for LLMs — turn any website into LLM-ready data — 89K+ stars

OSSfreemium
Mendable
102.1Ktoday138
1 shared tag
H

Headroom Context Optimization

Reduce LLM API costs by 50-90% through advanced context compression

OSSFree
Shubham Saboo
104.2Ktoday74
1 shared tag
n

n8n

Fair-code workflow automation platform with native AI and 400+ integrations — 178K+ stars

Source Avail.freemium
n8n
182.0Ktoday427
1 shared tag
R

RAG Failure Diagnostics Clinic

Diagnose and fix common RAG pipeline failure modes

OSSFree
Shubham Saboo
104.2Ktoday74
1 shared tag
T

Toonify Token Optimization

Reduce LLM API costs by 30-60% through intelligent token compression

OSSFree
Shubham Saboo
104.2Ktoday74
1 shared tag
L

LlamaIndex

Data framework for LLM applications — RAG, agents, and workflows — 47K+ stars

OSSFree
LlamaIndex
48.2Ktoday474
1 shared tag
C

Chroma

The open-source AI-native vector database — 27K+ stars

OSSfreemium
Chroma
27.1Ktoday181
1 shared tag
A

Activepieces

Open-source Zapier alternative with 280+ integrations and the largest MCP collection — 21K+ stars

OSSfreemium
Activepieces
21.5Ktoday349
1 shared tag

Compare directly

E2B vs CUAE2B vs Open TerminalE2B vs Cognitive FirewallE2B vs Crawl4AI