--- title: "Free JSON, XML and CSV Test Payloads | Mochavi" description: "Use small deterministic test payloads in JSON, XML, CSV, YAML, NDJSON, MessagePack, CBOR, PDF and HTML. No account or API key." canonical: "https://www.mochavi.com/payloads" markdown_mirror: "https://www.mochavi.com/payloads.md" language: "en" generated_from: "prerendered HTML" --- > Canonical HTML: [https://www.mochavi.com/payloads](https://www.mochavi.com/payloads) > > This machine-readable Markdown mirror is generated from the canonical page during the Mochavi production build. Mochavi product # Stable test payloads without a fixture server. Fetch small deterministic datasets in the format your code needs. Payloads is free to use and requires no account, API key or runtime. [Explore Payloads](https://payloads.mochavi.com/) [Open the explorer](https://payloads.mochavi.com/explorer) GET `/v1/users/1.xml` ``` 1 ari-lumen Ari Lumen … ``` 200 application/xml · response excerpt ## Boring infrastructure is the point. Every payload is a versioned static file delivered through the edge. That keeps test inputs predictable and leaves fewer moving parts between a test and its fixture. **Small** Fixtures stay quick to fetch, parse and inspect. **Deterministic** The same URL returns the same versioned payload. **Static** There is no application server, account or API key in the path. **Verifiable** The public manifest records media types, sizes and checksums. Formats ## Structured data and document fixtures. Use the same collection data across readable text and compact binary formats, plus deterministic PDF output for document tests. [**JSON** `application/json`](https://payloads.mochavi.com/formats/json)[**XML** `application/xml`](https://payloads.mochavi.com/formats/xml)[**CSV** `text/csv`](https://payloads.mochavi.com/formats/csv)[**YAML** `application/yaml`](https://payloads.mochavi.com/formats/yaml)[**NDJSON** `application/x-ndjson`](https://payloads.mochavi.com/formats/ndjson)[**MessagePack** `application/msgpack`](https://payloads.mochavi.com/formats/messagePack)[**CBOR** `application/cbor`](https://payloads.mochavi.com/formats/cbor)[**PDF** `application/pdf`](https://payloads.mochavi.com/formats/pdf)[**HTML** `text/html`](https://payloads.mochavi.com/formats/html) Guides ## Known inputs. Practical patterns. Use Payloads for the parts it is good at: deterministic fixtures, parser inputs and successful file flows. The guides also say when a fake API or programmable HTTP service is the better choice. [**Deterministic API fixtures** Build repeatable integration tests around immutable URLs and published checksums. Read guide →](https://payloads.mochavi.com/guides/deterministic-api-fixtures)[**Cross-format test data** Compare the same records across JSON, XML, CSV, YAML and binary decoders. Read guide →](https://payloads.mochavi.com/guides/same-test-data-json-xml-csv)[**File download testing** Exercise PDF, CSV, MessagePack and CBOR download flows with small known files. Read guide →](https://payloads.mochavi.com/guides/test-file-downloads)[**NDJSON parser testing** Test line readers and import pipelines with stable newline-delimited records. Read guide →](https://payloads.mochavi.com/guides/ndjson-parser-testing) [Browse every guide](https://payloads.mochavi.com/guides) [Compare Payloads with JSONPlaceholder, DummyJSON, httpbin and Mockaroo](https://payloads.mochavi.com/compare) Public contract ## Inspect before you depend on it. The manifest lists every published asset with its media type, byte size and SHA-256 checksum. Use it to discover fixtures or confirm an exact response in automated tests. [**Read the manifest** Machine-readable inventory and checksums](https://payloads.mochavi.com/v1/manifest.json) [**Check licensing** MIT source and CC0 fixture data](https://payloads.mochavi.com/licensing) [**Read the full service index** Routes, formats and asset metadata](https://payloads.mochavi.com/llms-full.txt)