ByteBleeder
bytebleeder // software studioDublinLocal-first · E2E

We buildsoftware thatcan't betray you

Every product we ship is designed so the servers running it can't read what's on it — not by policy, by architecture. Local-first, end-to-end encrypted, and reviewed before any of it goes out the door.

We take on client work too — web design and development, out of Dublin — built to the same standard: fast, accessible, private by default, and yours to own.

Fig. 1 — the markeight bits · one drop
plaintext stored server-side0 bytes
encryptionXChaCha20-Poly1305
key derivationArgon2id
security reviewEvery release
01

What we're building

all solutions →

Closed testing

TaskVault

A local-first, end-to-end encrypted task manager. Tasks are readable on your devices and nowhere else — our sync server only ever stores ciphertext it has no way to open, so a breach, a subpoena, or a curious employee all come back empty-handed.

  • WorksFully offline
  • SyncOptional, E2E encrypted
  • AI triageBring your own key
Learn more →
Renew passport9f3a·c71e·b208·4d5a·e19c
Call the bank — 3pm2b8d·0e44·a9f1·73c6·d5be
Draft review notesc04f·58a2·6e7d·91b3·0a2e
Hover — see what the server sees
02

How we build it

Not slogans. Architecture.

Your device
Rotate recovery phrase reminder
Draft security review notes
Ship offline attachment sync
key derived here (Argon2id) — never sent
Our server
9f 2c 41 d8 07 aa 3e 91 c4 55 …
e3 07 ba 55 12 f8 60 2b 9d 1c …
1a c9 6e 20 4b 77 d0 83 f5 08 …
ciphertext only — no keys, nothing to leak
Zero-knowledge by default

The one rule every product here answers to: the server stores encrypted blobs it cannot decrypt. That's the design's starting point, not a feature bolted on afterward.

Reviewed, not just written

Every change touching encryption, auth, or storage goes through an independent security pass before it ships — looking for what the person who wrote it would miss, on purpose.

Recoverable only by you

A lost passphrase can't be reset from the server side — there's a one-time recovery phrase instead, generated once, shown once, never stored anywhere we could hand over.

03

Websites for local businesses

Fast, mobile-friendly sites for shops, trades, salons and cafés in Ireland. A fixed quote before we start, and you own what we build.

/web

See the packages

One-page site, multi-page site, or booking and shop — about two weeks from first chat to launch.

→
/portfolio

See our portfolio

Live website concepts for a bakery, an aesthetics clinic and a beauty studio.

→
04

Get in touch

say hello

Questions, early access, or a website you want built — this reaches the people who build it. Send it below and it opens a message to info@bytebleeder.com from your own email app, prefilled and ready to go.

or email info@bytebleeder.com directly