oolong.xyz

What It Is

OOLONG is a free STDF to CSV converter with a very clear positioning: to quickly parse STDF files from semiconductor testing in the browser, view wafer/lot conditions, and export reports. The page emphasizes "0 B Data uploaded", "100% Client-side WASM Parsing engine", and "CSP Network blocked", indicating that its core selling point is zero data upload and fully client-side parsing, making it suitable for scenarios sensitive to test data privacy.

Core Features & Technical Dimensions

Feature-wise, it supports drag-and-drop STDF files, click-to-browse, folder import, and pulling files from S3; it supports STDF V4, .stdf, .std, .stdf.gz, and provides a demo lot. The parsing engine is based on WASM, which theoretically ensures good performance and a cross-platform experience in the browser. In terms of language, the page shows entry points for VI, Traditional Chinese, 한국어, etc., but does not specify the completeness of the interface localization.

Pricing, Openness & Integration

Pricing is straightforward: labeled as Free, with no paid plans, quotas, or enterprise editions visible. The page mentions GitHub, but the main text does not clarify whether it is open-source, its license, or how to self-host, so its degree of openness cannot be determined. API/SDK is also unmentioned; currently, it seems more like a web tool for manual use. On the integration front, S3 pulling is a highlight, but there are no mentions of CI, data warehouses, Notebooks, or automated pipeline integrations.

Pros, Cons & Target Audience

Pros include instant availability, no installation required, local data processing, support for compressed STDF, and the ability to quickly view abnormal wafers. Cons are thin documentation, and a lack of details on performance limits, failure scenarios, STDF version compatibility matrix, security audits, and long-term maintenance. It is better suited for test engineers, yield engineers, and FA/PE teams for ad-hoc analysis and CSV export; if batch processing, auditing, permission management, or deep integration is required, you may still need to build your own scripts or use a professional data platform.

China Access & Alternatives

Access from mainland China cannot be determined from the page, so china_access is recorded as unknown; the product is free and does not involve payments. Alternative solutions include stdf-tools, Semi-ATE STDF, Python STDF parsing libraries, or internally built STDF conversion services. Overall, OOLONG offers high value in "privacy-friendly lightweight conversion" scenarios, but information on service support and engineering capabilities is insufficient.