YAML indentation: tabs vs spaces (and why parsing fails)
YAML is indentation-sensitive. Learn how tabs/spaces break parsing and how to normalize YAML before converting to JSON (no upload).
Indentation errors in YAML Playbook
Indentation errors in YAML. Practical troubleshooting runbook for repeatable fixes and safer conversions.
TL;DR: Validate -> locate exact failing spot -> fix the minimal part -> re-validate.
Execution steps
- Validate input locally. Start with a validator or parser-friendly converter.
- Locate root cause. Use line/position/error token to isolate one failing place.
- Apply a minimal fix. Do not refactor all content at once.
- Re-validate and continue. Once clean, convert/export safely.
Recommended tools
Relevant guides
Auto-selected from existing guides for this topic. Need more: search by keyword.
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Related actions
- Deep topic hub: Indentation errors in YAML
- Decision comparison: Indentation errors in YAML
- Alternative flows: Indentation errors in YAML
- Migration path: Indentation errors in YAML
- Case study: Indentation errors in YAML
- Trend report: Indentation errors in YAML
- Pillar for YAML
- Data asset: Indentation errors in YAML
- All YAML subtopics
- Search tools for "indentation spaces yaml Indentation errors in YAML"
Related playbooks
- Inline JSON inside YAML
- JSON to YAML: when it works and when it breaks
- Kubernetes YAML pitfalls
- found character that cannot start any token
- Flow style YAML ({ } and [ ])
- Environment variables in YAML
Related by intent
- Intent hub for Indentation errors in YAML
- Execution playbook
- Method comparison
- Alternative flows
- Migration path
- Benchmark baseline
- Case study
- Trend report
- Cluster pillar
- Cross-cluster pillar: JSON
- Linkable data asset
Expert signal
Expert note: Indentation errors in YAML usually resolves fastest when triage starts from strict validation and then branches to comparison/alternative paths based on input quality.
Data snapshot 2026
| Metric | Value |
|---|---|
| Intent confidence score | 72/100 |
| Predicted CTR uplift potential | 19% |
| Target crawl depth | < 3 clicks |
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