Peter Steinberger

PSPDFKit founder turned creator of OpenClaw, the open-source personal AI agent

@steipete San Francisco, United States601K followersAI Builders Developer Tools Open Source Makers Mac & Desktop App Makers

About Peter Steinberger

Peter Steinberger is an Austrian developer who founded PSPDFKit, a PDF SDK for iOS and later many other platforms. He started it in Vienna in 2011 as a bootstrapped framework and grew it into a company used by large enterprises. In 2021 Insight Partners made a strategic investment of more than EUR 100 million, and Steinberger and co-founder Martin Schurrer stepped back from full-time roles. The company was later renamed Nutrient, and he has described the outcome as a nine-figure exit.

After selling his shares he wrote openly about burnout and a period of feeling lost. In 2025 he returned to building, driven by AI coding agents, and shipped a stream of open-source tools such as CodexBar, a menu bar app that shows Codex and Claude Code usage, along with the summarize CLI, Oracle, RepoBar and many small agent utilities.

In late 2025 he released Clawdbot, a self-hosted personal AI agent that lives in chat apps and can act on a user's computer. It went viral in January 2026, was renamed Moltbot after a trademark request from Anthropic and then OpenClaw days later, and became one of the most-starred projects on GitHub. In February 2026 he joined OpenAI to work on personal agents, while OpenClaw moved to an independent foundation. He lives in San Francisco and blogs at steipete.me.

Products by Peter Steinberger

OpenClaw

openclaw.ai

Open-source, self-hosted personal AI agent that works through chat apps and acts on your computer.

PSPDFKit (Nutrient)

nutrient.io

acquired

Document and PDF SDK for mobile, web and server, now operating as Nutrient.

CodexBar

codex.bar

macOS menu bar app showing usage limits for OpenAI Codex and Claude Code.

summarize

summarize.sh

CLI and Chrome extension that summarizes URLs, YouTube videos, podcasts and files.

RepoBar

repo.bar

Shows GitHub repo CI, issues, PRs and releases in the menu bar and terminal.

Exit story

PSPDFKit (Nutrient)

→ Insight Partners · 2021

After more than a decade of pouring nearly all his time and energy into the company, Peter felt he needed a break.

by Peter Steinberger

Peter Steinberger's journey, 2011–20266 milestones · self-reported

First product
Funding
Launch / milestone
Started 2011

2011First product: Founded and bootstrapped PSPDFKit in Vienna
2021Funding: Insight Partners invested €100M+ in PSPDFKit
2025Launch: Returned to building with AI coding agents and released many…
2025Launch: Released Clawdbot, a self-hosted personal AI agent
2026Milestone: Clawdbot went viral and was renamed Moltbot and then OpenClaw…
2026Milestone: Joined OpenAI to work on personal agents

Timeline

2011 — Founded and bootstrapped PSPDFKit in Vienna.
2021 — Insight Partners invested over EUR 100M in PSPDFKit; he stepped back from full-time work.
2025 — Returned to building with AI coding agents and released many open-source tools.
2025 — Released Clawdbot, a self-hosted personal AI agent.
2026 — Clawdbot went viral and was renamed Moltbot and then OpenClaw in late January.
2026 — Joined OpenAI to work on personal agents; OpenClaw moved to an independent foundation.

How Peter builds

Build what excites you and release it as open source.
Purpose comes from creating things, not from chasing a new location.
Let AI agents do the heavy lifting and ship many small tools fast.
Changing how people use software matters more to him than building a big company.

Learn from Peter Steinberger

[newsletter]

steipete.me newsletter

Twice-monthly posts on shipping with AI agents, open-source tools and building software.

by Peter Steinberger

Peter Steinberger vs Matt Pocock

Peter Steinberger FAQ

Who is Peter Steinberger?

An Austrian developer who founded PSPDFKit (now Nutrient) and later created OpenClaw, an open-source personal AI agent. He joined OpenAI in February 2026.

What is OpenClaw?

A self-hosted, open-source personal AI agent first released as Clawdbot, renamed Moltbot and then OpenClaw in January 2026, and now stewarded by the OpenClaw Foundation.