Data format
NDJSON Sample Files
NDJSON (.ndjson) is newline-delimited JSON optimized for streaming pipelines. Use sample NDJSON files to validate event ingestion, line-level error handling, and batch processing behavior.
9 files
All to 5MB
SHA256 verified
Manifest included
Quick facts
Files first
NDJSON Sample Files — Download
Starter file
DownloadWebhook Delivery NDJSON
Download FixtureAPI Activity NDJSON
Download FixtureMalformed NDJSON Stream
Download| Filename | Size | MIME | Download |
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| 313 B | application/octet-stream |
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| 230 B | application/octet-stream |
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| 1.0 MB | application/octet-stream |
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| 200.0 KB | application/octet-stream |
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| 2.0 MB | application/octet-stream |
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| 500.0 KB | application/octet-stream |
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| 50.0 KB | application/octet-stream |
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| 5.0 MB | application/octet-stream |
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| 356 B | application/octet-stream |
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No files match the current filter. Switch to another chip or size range.
Use cases
NDJSON Testing Workflows
Use the file table first, then branch into compare or FAQ only if the task needs more context.
Compare and decide
NDJSON Format Comparisons
FAQ and reference
NDJSON File FAQ
Checksum Verification
Use checksums to confirm file integrity after download.
shasum -a 256 your_file_name_here
# Compare output with SHA256 values listed above.
Where is the machine-readable manifest?
Use the manifest when you need stable names, SHA256 values, and URLs for automation.
Use in code — curl, Python, Node, wget
Copy any snippet directly into scripts, test suites, or CI pipelines. All URLs are stable and publicly accessible with no auth required.
# Download ndjson_api_activity_stream_sample.ndjson
curl -L -o ndjson_api_activity_stream_sample.ndjson \
https://samplefile.com/samples/download/data/ndjson/ndjson_api_activity_stream_sample.ndjson/
# Or fetch a random NDJSON file
curl -s "https://samplefile.com/samples/api/random?format=ndjson" | jq -r '.download_url'
# Download ndjson_api_activity_stream_sample.ndjson
wget -O ndjson_api_activity_stream_sample.ndjson \
https://samplefile.com/samples/download/data/ndjson/ndjson_api_activity_stream_sample.ndjson/
import requests
# Download a specific file
url = "https://samplefile.com/samples/download/data/ndjson/ndjson_api_activity_stream_sample.ndjson/"
resp = requests.get(url)
with open("ndjson_api_activity_stream_sample.ndjson", "wb") as f:
f.write(resp.content)
# Or fetch a random NDJSON file via API
meta = requests.get("https://samplefile.com/samples/api/random?format=ndjson").json()
resp = requests.get(meta["download_url"])
with open(meta["name"], "wb") as f:
f.write(resp.content)
// Download a specific file
const fs = require("fs");
const https = require("https");
const url = "https://samplefile.com/samples/download/data/ndjson/ndjson_api_activity_stream_sample.ndjson/";
https.get(url, (res) => {
res.pipe(fs.createWriteStream("ndjson_api_activity_stream_sample.ndjson"));
});
// Or fetch a random NDJSON via the API
const meta = await fetch("https://samplefile.com/samples/api/random?format=ndjson").then(r => r.json());
const file = await fetch(meta.download_url);
// use file.arrayBuffer(), file.body, etc.
# Random NDJSON file (JSON response)
GET https://samplefile.com/samples/api/random?format=ndjson
# All NDJSON files
GET https://samplefile.com/samples/api/files?format=ndjson
# Manifest with SHA256 checksums
GET https://samplefile.com/samples/data/ndjson/manifest.json
# Response includes: name, size_bytes, mime_type, sha256, download_url
Validation Methodology
- Validate extension and MIME detection before processing.
- Benchmark performance with small and larger files.
- Test malformed-input handling and error messaging.
Fixture Matrix
Use the curated NDJSON matrix to choose the right clean, edge-case, and broken fixtures for this format.
Open Matrix
Workflow Packs
Edge-Case Fixtures