Logo (SVG)
A generic sample brand logo as scalable vector graphics — a gradient mark plus a wordmark — for testing SVG rendering, rasterisation, and vector-to-raster conversion. Opens in the in-browser editor.
Files for the in-browser editor
Text-based files you can open, edit, and download directly in the browser editor.
UI Icon (SVG)
A single stroke-style UI icon (a document) as a 24×24 SVG — the kind of vector icon used in interfaces, for testing icon rendering, recolouring, and SVG-to-PNG conversion.
Bar Chart (SVG)
A bar chart drawn as vector SVG — axis, gridlines, labelled bars — the scalable counterpart to the raster chart images, for testing SVG chart rendering and vector conversion.
Animated Spinner (SVG)
An animated loading spinner using SMIL (animateTransform) — a self-contained animated SVG for testing whether a renderer or converter handles SVG animation, and how it rasterises an animated frame.
Flat Illustration (SVG)
A flat vector landscape — gradient sky, sun, layered hills, and trees built from bezier paths — a richer SVG for testing gradient and path rendering, thumbnailing, and vector conversion.
Jupyter Notebook (IPYNB)
A valid Jupyter notebook (nbformat 4.5) with markdown cells, code cells, and real outputs (stdout stream and an execute result) — for testing notebook parsers, nbconvert, and JSON tooling.
Mermaid Flowchart (MMD)
A Mermaid flowchart of an order-fulfilment process as diagrams-as-code — for testing Mermaid rendering, diagram-to-image conversion, and Markdown pipelines that embed Mermaid.
Graphviz DOT Graph
A Graphviz DOT directed graph describing a fulfilment pipeline — for testing DOT parsing, Graphviz rendering, and DOT-to-SVG/PNG conversion.
PlantUML Sequence Diagram
A PlantUML sequence diagram of an order interaction (customer, store, warehouse) as diagrams-as-code — for testing PlantUML parsing and diagram rendering pipelines.
draw.io Diagram (XML)
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.
Sample JWT (HS256)
A sample JSON Web Token (JWT) signed with HS256 using a published example secret — verifiable but powerless — for testing JWT decoders and validators. Sample only, never for production. Paired with its decoded claims.
Sample JWT — Decoded (JSON)
The decoded header and payload of the sample JWT as JSON, alongside the public signing secret and algorithm — the ground truth for checking a JWT decoder's output.
Project Checklist Template (Markdown)
A Markdown checklist template with task-list checkboxes — opens directly in the in-browser editor.
Responsive HTML Email Template
A responsive, table-based HTML email template with inline styles — a header, body, button, and footer. Opens in the in-browser editor.
Newsletter Template (HTML Email)
The newsletter as a responsive, table-based HTML email with inline styles — a masthead, three articles, and a call-to-action button. Opens in the in-browser editor; twin of the DOCX version.
WARC — Web Archive
A minimal WARC 1.0 web archive with a warcinfo record and an HTTP response record capturing a small HTML page — for testing WARC parsers and web-archive tooling.
Plain-Text Email (EML)
A standards-compliant plain-text email message (.eml) with full headers — the simplest valid RFC 822 message for testing email header parsing and EML import.
Multipart Email — Text + HTML (EML)
A multipart/alternative email carrying both a plain-text and an HTML body — for testing MIME part selection, HTML-part handling and sanitising, and multipart parsing.