Data files are where parsers quietly break, so this category leans into the edge cases. The CSV set runs from clean to deliberately messy, quoted commas, embedded newlines, ragged rows, semicolon and tab delimiters, a headerless file, a ten-thousand-row file, and a Latin-1 encoded file. JSON comes flat, deeply nested, as JSON Lines, and intentionally invalid for error-handling tests. OpenAPI and JSON Schema twins, paginated API and webhook fixtures, and irregular time-series edges cover modern API QA. There's XML, YAML, and a real SQLite database with related tables, plus faker-generated user and order datasets with documented schemas. Each file spells out its exact quirks in the spec, so when your importer chokes you know precisely which case did it.
Filter data on Browse · 1255 files · 73 subcategories
Results start with a representative from each related test family. Use a card’s variant menu or the filters below to reach a specific format, profile, or failure case; every sample retains its own detail page and download.
Encoding matrix (UTF-8 BOM, UTF-16, CP1252, Shift-JIS, Latin-1), delimiter variants, fixed-width, ragged rows, quoted newlines, and domain mini-datasets (SaaS, POS, lab, marketing).
Schemas are documented and values are deterministic synthetic SAMPLE data, shaped like production exports without real customer PII.
Filter Browse by purpose encoding-detection or open the encodings subcategory under Data.
Yes, later waves add valid/invalid schema twins, pagination and webhook API fixtures, and irregular timestamp / DST-gap series. Filter by schema-testing or timeseries-testing.
Start with one example from each use-case group, then continue through its other test families. Choose a use case, search, or filter to find a specific profile; a card’s variant menu contains its related samples.
898 test families · 1255 available files · Page 1 of 50
Accounting Ledgers
Aged creditors summary for Alder Books Reconciliation. The 3 suppliers behind the 16 operating payments, grouped by expense category. The amounts due are 774.00, 617.00, 673.00 and they sum to 2064.00, which is the total
Api
Batch API response mixing success and failure per sub-request.
Banking
A bank-transaction statement: 60 debits and credits across three accounts (masked numbers) with running balances, categories, and merchants. Synthetic data for testing statement parsers, categorisation, and reconciliatio
Banking Credit
Banking reconciliation identities for Alder Books Reconciliation. 5 named identities covering the amortisation, the unfinanced arrangement fee, the covenant directions, the direct debit control sum and the two different
Binary
The same records as Apache Avro: a compact row-based binary format that embeds its own schema, widely used in Kafka pipelines. For testing Avro decoders and schema evolution.
Business Kits
Generic primary records CSV for Alder Books Reconciliation. 24 generic records with stable primary keys. Map the documented fields before importing into another platform.
Calendar Contacts
A complete iCalendar structure using LF-only line endings, a common recoverable export defect for tolerant parser tests.
Columnar
JSON description of nullable columns in the null-heavy columnar fixtures.
Config
Tiny Apache rewrite rules SAMPLE for .htaccess parser tests.
Construction Billing
Application for payment continuation sheet for Pine Property Services. 12 contract items, 2 change order lines and a TOTAL row, in the shape of an AIA G703 continuation sheet. Scheduled values total 4113.00; 1490.00 was
Contracts Agreements
Amendment register for Tern Client Services. Two rows, one per varied clause, each carrying the previous value and the new one so a reader can reconstruct the agreement as it stood on any date. Clause 4.1 moves from 250.
Corporate Records
Annual return JSON for Juniper Workspace Cloud. The same five parts as a nested object with shareCapital, members, officers, personsWithSignificantControl and charges arrays. Numbers that are counts are JSON numbers and
CSV
A CSV with 10,000 data rows, for testing streaming parsers, memory handling, and import performance.
Database
A real SQLite database with two related tables (users and orders joined by a foreign key) for testing database importers and SQL tooling.
Diagrams
A draw.io (diagrams.net) diagram in its native mxGraphModel XML (a small flowchart) for testing draw.io import/export and XML parsing of diagram files.
Ecommerce
A realistic e-commerce customer directory (500 rows): part of a relational dataset (products, customers, orders) with CSV, JSON, SQL, and Parquet twins for testing joins, imports, and conversion.
Ecommerce Documents
Customer export with tax jurisdiction for Fieldnote Supply Shop. 6 fictional customers at example.test addresses, each with the jurisdiction that set the tax rate on their orders. Every customer placed 2 orders and merch
Edge Cases
Timestamps spanning a US spring-forward DST gap and leap-day dates for timezone and calendar edge-case testing.
The use-case group filter replaces the long list of category sections.
