PIERERRA developer & game modder
Open Tools
AVAILABLE FOR SMALL PROJECTS

Building reliable save editors and
browser-based tools that just work.

I'm Piererra, a developer focused on browser-based tools. My work began with reverse-engineering GTA San Andreas save files and has grown into a suite of editors used by players worldwide. Everything I build runs entirely client-side — free, open-source, and private by design.

ABOUT

Self-taught, detail-driven, and focused on games.

Piererra began as a personal project to repair my own save files and has since grown into a suite of editors used by a wider community of players. No save data is ever uploaded — every tool runs entirely in the browser, start to finish.

  1. Started modding GTA San Andreas
    Began by manually editing save files byte by byte, driven by curiosity and persistence.
  2. Taught myself development
    Built on that experience to learn full browser-based web development.
  3. Shipped Piererra
    Released four live editors, translated into 75+ languages and used by players around the world.
SKILLS

Languages and tools I work with.

Lua C++ HTML5 JavaScript TypeScript CSS3 Visual Basic 6 Python Git
PROJECTS

Projects I've shipped.

A flagship project so far — more save editors and experiments will land here over time.

FLAGSHIP PROJECT

Piererra

A free, open-source hub of browser-based save editors — edit cash, cars, career progress, gangs, zones, collectables and more without installing anything.

4 editors 75+ languages 100% client-side
Open Piererra
GTA San Andreas → NFS Underground 2 → NFS Most Wanted → Subway Surfers →
OTHER PROJECTS

Not a save editor, but still mine.

A small utility tool, separate from the Piererra save editors.

UTILITY

Private Links

Password-protect any link. Encryption and decryption happen entirely in your browser using AES-GCM — nothing is ever sent to a server.

Client-side encryption No signup
Open Private Links
CONTACT

Get in touch.

For bug reports, feature requests, or general questions, Discord is the fastest way to reach me.

Piererra
Piererra
Open Discord