Convert NDJSON Lines into a JSON Array

🧩 Problem

Logs and streams emit NDJSON lines, but many tools expect a JSON array. When malformed or unstructured data hits routers, filters, or API connectors, entire automations halt or silently drop records. Teams end up retrying runs, hand-editing payloads, and explaining delays to customers.

💡 Why This Happens

Streaming formats favor line-delimited objects; batch tools want arrays. Most automation platforms assume well-formed payloads and do minimal validation. AI models, third-party APIs, and changing vendor schemas drift over time, mixing encodings, formats, and unexpected fields that downstream steps cannot tolerate.

🚀 The Fix: JSON Fixer (API Endpoint)

Use this endpoint to solve the problem reliably inside Zapier, n8n, Make.com, BigQuery, S3.

Endpoint

POST https://api.postthatgetthis.com/json/fix

Example Input

{ "a": 1 }
{ "a": 2 }

Example Output

[{ "a": 1 }, { "a": 2 }]

📦 What This Solves

• Wraps NDJSON lines into arrays
• Keeps object order
• No custom scripting needed

Not seeing your exact problem? Tell us what’s breaking in your workflow and we’ll help fix it: Submit A Problem.

🔗 Related Use Cases

• JSON to CSV
• Text to JSON

👉 Try it now

Use this endpoint directly in your automation tool. POST → get cleaned, structured data. Every time.