You are not alone.
Sags Luisa.
Sags Luisa is a safe, anonymous reporting platform for sexual violence
In clubs, sports clubs and at the workplace. Your data stays encrypted in your browser. We never see it.
Prefer it all on one page? Open the form as a single page · Report on someone else's behalf
How it works
Three steps. Completely private.
Create a vault
Your browser generates a unique vault token. No account, no email address is stored. The token is your only key.
Encrypt the incident
Your account is encrypted locally with AES-256-GCM before it reaches our servers. We can never read the content.
Anonymous matching
If another person reports the same accused individual, your advocate is notified — without revealing anyone's identity.
Who it's for
Everywhere it happens.
Nightlife
Clubs · Bars · Festivals
Assaults on a night out often go unreported. Sags Luisa! gives you a safe way to document what happened — without pressure, without publicity.
Dates & Acquaintances
Dating · Casual acquaintances · Strangers
Many assaults happen with people you barely know — on a date, after a chance meeting, by a stranger. Sags Luisa! is for all of these situations, not just structural contexts.
Sports clubs
Clubs · Teams · Training
Clubs create close-knit structures — and sometimes power dynamics that enable assault. Your report stays encrypted and anonymous.
Workplace
Companies · NGOs · Institutions
Workplace harassment is widespread and hard to report. Sags Luisa! lets you document incidents without risking your job.
Privacy
Privacy by Design.
Not by Default.
Privacy isn't a feature we bolted on afterwards. It's the foundation Sags Luisa! was built on.
Client-side encryption
All content is encrypted with AES-256-GCM in your browser before it's transmitted. The key is derived from your vault token via PBKDF2 (310,000 iterations).
No email is stored
We don't store your email address. During onboarding we show you the SHA-256 hash for transparency — it's then discarded.
Perpetrator identifier as a hash
The identifier of the accused person is hashed (SHA-256) in your browser. We never see the plaintext — and matching still works reliably.
Vault token as the key
Your UUID vault token is the only access credential. We only store its SHA-256 hash. Without the token there's no access — not even for us.
Swiss hosting
Production runs on Infomaniak / Exoscale — Swiss data centers, nDSG-compliant, no US Cloud Act risk.
No tracking, no cookies
No analytics services, no Google Analytics, no third-party cookies. What happens on this platform stays here.
“Having a voice doesn't mean it's heard. We're building the place where it can be heard.”
Sags Luisa! — Verein, Zürich
About us
A Swiss association
for Switzerland.
Sags Luisa! is a passion project (started by a cis man who witnessed too many assaults against friends and wanted to do something about it), with the goal of becoming a registered association based in Zürich. We want to be a non-profit project with no commercial interest in your data — because we simply can't see it.
Our model is based on Callisto Vault, a system developed in the US for anonymous assault reporting at universities — extended to nightlife, clubs and workplaces in German-speaking countries.
Why Sags Luisa! exists
Unfortunately, I have not had successful experiences with existing reporting platforms either. The problem is always the same: one person's word against another's — and it rarely leads anywhere. That's why I created Sags Luisa!: a “find co-survivors” platform. My goal is a place where survivors can anonymously report their perpetrator — and in doing so, find others who have been harmed by the same person.
Legal form
Registered association, Canton of Zürich
Data protection
Swiss nDSG · Infomaniak / Exoscale hosting
Encryption
Web Crypto API · AES-256-GCM · PBKDF2
Languages
German and English
Reports filed
4
FAQ
Frequently asked questions.
Who can file a report?
Anyone who has experienced an assault — regardless of age, gender, or nationality. The platform is available in German and English.
What happens to my data?
Your report is encrypted in your browser before it reaches our servers. We technically cannot read the content. We don't store your email address.
What is a vault token?
A randomly generated UUID key that only exists in your browser. It's the only way to access your vault. If you lose it, there's no way to recover it — not even for us.
What does “matching” mean?
When you provide a perpetrator identifier, a SHA-256 hash is computed from it. If another person reports the same identifier, the system detects the match and notifies your advocate — without revealing either party's identity.
Does it cost anything?
No. Sags Luisa! is a non-profit project and permanently free for survivors.
How can I support the association?
By donating, becoming a member, or volunteering as an advocate. Write to us at hello@sagsluisa.ch.
Ready to secure your experience?
It only takes a few minutes. No account. No personal data on our servers.