Comparisons
Compare Struktur to alternatives for structured data extraction.
Compare Struktur to alternatives for structured data extraction and document processing.
Struktur vs LlamaIndex
LlamaParse and LlamaExtract comparison
Struktur vs Unstract
Open source document extraction platforms
Struktur vs Instructor
Full pipeline vs extraction-only library
Struktur vs Manual LLM Calls
The boilerplate you'd write yourself
Quick Comparison
| Aspect | Struktur | LlamaIndex | Unstract | Instructor |
|---|---|---|---|---|
| Open source | MIT | No | Apache 2.0 | MIT |
| Self-hosted | Yes | No | Yes | N/A (library) |
| Agent strategy | Yes | No | No | No |
| Chunking | Built-in | Built-in | Built-in | Manual |
| Validation + retry | Built-in | Built-in | Built-in | Built-in |
| Merging | Built-in | Built-in | Built-in | Manual |
| File parsing | Built-in | LlamaParse | Built-in | Manual |
| Pricing | Your LLM costs | Per-page credits | Free (OSS) | Free |
When to Choose Struktur
- You want an autonomous agent that explores documents and decides how to extract
- You need multiple strategies for different document types
- Data must stay local — no cloud uploads required
- You want control over costs — pay only for your LLM API calls
- TypeScript/JavaScript stack — native SDK support
When to Choose Alternatives
- LlamaIndex if you need citations with bounding boxes or want managed infrastructure
- Unstract if you want visual prompt engineering or n8n workflow integration
- Instructor if you only need extraction (not parsing/chunking) and use Python