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Search Engines
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Using C#
Open Source Search Engines using C#
A curated collection of the best open source specialized engines and platforms for implementing search functionality. using C#.
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Manticore Search
Lightning-fast open source search engine for big data
Stars
11,949
Last commit
9 hours ago
License
GPL-3.0
Open source search database delivering 2.83x faster performance than Elasticsearch. Features vector search, SQL interface, and full-text capabilities.
Open Source
Alternative to:
ElasticSearch
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– Open-source wiki software with real-time collaboration, diagrams, AI, SSO, RBAC permissions and more.
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Popular Proprietary Software:
Claude Code Alternatives
12
Spotify Alternatives
2
Notion Alternatives
20
Lovable Alternatives
3
Wispr Flow Alternatives
7
Discord Alternatives
11
CapCut Alternatives
5
n8n Alternatives
6
Cursor Alternatives
8
Codex Alternatives
17
Microsoft Word Alternatives
5
Adobe Photoshop Alternatives
3
Popular Categories:
Low-Code/No-Code Platforms
36
Project Management Suites
20
AI Agent Platforms
21
Infrastructure Monitoring Tools
19
PaaS & Deployment Tools
18
Team Chat & Messaging Tools
16
Note-Taking Tools
16
Collaborative Workspaces
15
Web Analytics
16
Backend-as-a-Service (BaaS) Tools
14
Cloud File Sync & Share Tools
13
Performance Monitoring (APM) Tools
14
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