I Built a Local Password Manager in Java — No Cloud, No Accounts, Just One Master Password

bloodSUCKER — Fri, 19 Jun 2026 08:56:43 +0000

I Built a Local Password Manager in Java — No Cloud, No Accounts, Just One Master Password

Most password managers today want your data in the cloud. Sync, subscriptions, accounts, trust in someone else's servers.

I wanted the opposite: a small desktop app that keeps everything on my machine, encrypts secrets properly, and stays out of the way.

That's how SafeBox started.

What is SafeBox?

SafeBox is a minimalist password manager for Windows:

one master password for the whole vault
local storage only (~/.safebox/)
no servers, no cloud sync, no telemetry
light and dark theme
English and Russian UI

It's not trying to replace enterprise password platforms. It's for people who want a simple, offline vault on their own PC.

Download (Windows):

https://github.com/IAMBloodSUCKER/SafeBox/releases/download/v1.0.2/SafeBox-1.0.2.exe

Source code:

https://github.com/IAMBloodSUCKER/SafeBox

Why local-first?

Cloud sync is convenient, but it also means:

your encrypted vault still lives on someone else's infrastructure
you depend on their uptime, pricing, and security practices
the attack surface is bigger than "just my laptop"

SafeBox makes a different trade-off:

pro: full control, offline by default, no account required
con: no automatic sync between devices — you handle backups yourself

For many personal use cases, that's a fair deal.

What you can do

store logins, passwords, and notes
search by site or username
copy fields to clipboard (auto-cleared after 30 seconds)
generate passwords with custom rules
export / import encrypted .safebox backups
lock the vault after 5 minutes of inactivity
change the master password (all entries are re-encrypted)

The UI is intentionally simple: table on top, details below, no clutter.

How security works (short version)

SafeBox is local, but "local" doesn't mean "plain text".

Master password is never stored

On disk you get:

salt.bin — random salt for key derivation
safebox.db — SQLite database
a verifier (SHA-256 hash of the derived key), not the password itself

Suggested tags: java, security, opensource, desktop, showdev

I got tired of bloated reminder apps, so I built one in Java

bloodSUCKER — Thu, 28 May 2026 08:13:37 +0000

I got tired of bloated reminder apps, so I built my own

I only wanted this:

“Remind me about X at time Y.”

Not a full planning system. Not 20 screens. Not extra friction.

So I built Reminot — a minimal Windows reminder app that stays out of your way.

What it does

quick text + date/time reminders
clean active reminders list
tray/background mode
Windows notifications
local storage (no cloud dependency)
single-instance behavior (no duplicate background processes)

Why this exists

Most reminder apps feel over-engineered for tiny real-life tasks like:

“call back in 15 minutes”
“turn off the kettle”
“send that file at 18:30”

I wanted reminders in seconds, not workflows.

Stack

Java 17 + Swing + local persistence + jpackage + GitHub Actions.

Try it

Repo:

https://github.com/IAMBloodSUCKER/Reminot

Latest release:

https://github.com/IAMBloodSUCKER/Reminot/releases/latest

If you test it, tell me one thing:

What would make this your default reminder app?

DEV Community: bloodSUCKER

I Built a Local Password Manager in Java — No Cloud, No Accounts, Just One Master Password

I Built a Local Password Manager in Java — No Cloud, No Accounts, Just One Master Password

What is SafeBox?

Why local-first?

What you can do

How security works (short version)

Master password is never stored

I got tired of bloated reminder apps, so I built one in Java

What it does

Why this exists

Stack

Try it