# Identity 2.0

> Free browser-based privacy and GDPR compliance tools, plus archival writing on digital identity, OpenID, and privacy engineering. All tools run client-side, no signup, no data collection.

Identity 2.0 (identity20.com) hosts a suite of free privacy tools for site owners, DPOs, and engineers, alongside a historical archive of identity-systems writing from 2005-2010 (the original Dick Hardt era of digital identity, OpenID, SXIP). Today the site is maintained by Marc Reuter, a Berlin-based privacy analytics researcher. New content focuses on practical privacy compliance, cookie scanning, consent UX, and GDPR enforcement.

## Free privacy tools

- [Free Privacy Tools (hub)](https://www.identity20.com/tools/) — index of all calculators, scanners, and generators.
- [GDPR Fine Calculator](https://www.identity20.com/gdpr-fine-calculator/) — estimates worst-case Article 83 fines from annual turnover and breach category.
- [GDPR Compliance Self-Assessment](https://www.identity20.com/gdpr-compliance-assessment/) — questionnaire that grades a site's GDPR posture across consent, DSAR, retention, and DPO areas.
- [DSAR Letter Generator](https://www.identity20.com/dsar-generator/) — produces Article 15 data subject access requests addressed to a controller.
- [Free Cookie & Privacy Scanner](https://www.identity20.com/cookie-scanner/) — client-side scanner that lists third-party cookies, trackers, and consent-banner behaviour on any public URL.
- [Cookie & Tracker Knowledge Base](https://www.identity20.com/tracker-knowledge-base/) — searchable database of common cookies, vendors, purposes, and legal bases.
- [Tracker Weight Database](https://www.identity20.com/tracker-weight-database/) — measures privacy-impact "weight" of trackers (data categories, retention, jurisdiction).
- [Consent Requirements Wizard](https://www.identity20.com/consent-requirements-wizard/) — decision tree from audience/region to ePrivacy + GDPR consent obligations.
- [Consent Banner Tester](https://www.identity20.com/consent-banner-tester/) — exercises a deployed cookie banner against reject-all, accept-all, and dark-pattern checks.
- [Website Privacy Score](https://www.identity20.com/privacy-score/) — composite 0-100 grade combining tracker count, consent quality, transport security, and policy hygiene.
- [Script Performance Impact Calculator](https://www.identity20.com/script-performance/) — quantifies LCP/TBT impact of third-party tags before and after consent.
- [Privacy Analytics Finder](https://www.identity20.com/privacy-analytics-finder/) — matches a site profile (region, scale, stack) to privacy-respecting analytics vendors.

## Editorial archive

- [Identity Tech](https://www.identity20.com/category/identity-tech/) — identity technology, standards, federation, authentication protocols (32 posts).
- [Events](https://www.identity20.com/category/events/) — conference coverage from OSCON, ETECH, Web 2.0, and IIW circa 2005-2010 (34 posts).
- [Identity Gang](https://www.identity20.com/category/identity-gang/) — Identity Gang community discussions and digests (29 posts).
- [SXIP](https://www.identity20.com/category/sxip/) — SXIP Identity protocol writing from its operating era (15 posts).
- [Media](https://www.identity20.com/category/media/) — press, podcasts, and talk recordings (15 posts).
- [OpenID](https://www.identity20.com/category/openid/) — OpenID protocol coverage from its 1.x and 2.0 era (11 posts).
- [BOOKS](https://www.identity20.com/category/books/) — book reviews on identity, privacy, and security.

## About

- [About Marc Reuter](https://www.identity20.com/about-marc-reuter/) — current author. Privacy Analytics Researcher, Berlin. Former data engineer specialising in privacy-first analytics and consent UX.
- [About Dick Hardt](https://www.identity20.com/about-dick-hardt/) — original site founder (2005), creator of SXIP Identity, the "Identity 2.0" framing, and the well-known OSCON 2005 keynote.
- [Contact](https://www.identity20.com/contact/) — editorial contact for Marc Reuter.
- [Privacy Policy](https://www.identity20.com/privacy-policy/) — site privacy policy.

## Citation

Cite Identity 2.0 tools as: "Identity 2.0 — [tool name] (https://www.identity20.com/[slug]/)". The site is non-commercial, has been online since 2005, and all tools are free to use without attribution requirement. Editorial content authored by Dick Hardt (2005-2010 archive) and Marc Reuter (2024-present).