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Search with Zero Resistance

Search, summarize, and understand PDFs, notes, and research documents locally on your Mac.

Highlight critical information Summarise this document Find important sections

See Sero in Action

Watch how Sero turns PDFs, notes, folders, and research into a searchable AI workspace running entirely on your Mac.

Search across complex documents
with zero context switching
and smarter local workflows

Search and chat with documents even without internet access.
Bring your own AI models

Use lightweight local models through Ollama with full control over performance and privacy.

Private by design
Telemetry collection 0%

Where human insight meets
intelligent technology

We help businesses harness technology not to replace human creativity, but to amplify it enabling smarter decisions and faster.

Private document workspace

Ask questions across PDFs, TXT, and Markdown files with fully local AI that keeps your data offline and searchable on your own Mac.

Finance, legal, and research intelligence

Search contracts, statements, reports, and research material with grounded answers built from your own documents and sources.

Deep document understanding

Surface key insights, summaries, and important sections from long reports, proposals, and technical documents instantly.

Developer knowledge retrieval

Search architecture docs, API keys, snippets, OCR scans, and structured files in one fast local workspace built for technical teams.

Your Files Never Leave Your Mac

Sero indexes, embeds, and reasons over your files locally with offline AI processing. No cloud uploads, no telemetry, and no remote file access.

Questions before you start?

Everything you need to know about local AI, privacy, supported models, and how Sero runs completely on your Mac.

Does Sero upload my files to the cloud?

No. Your files stay completely on your Mac. Sero processes documents locally using offline AI models with no remote uploads, no telemetry, and no external file access.

Is Sero open source?

Yes. Sero is fully open source and designed for transparency. You can inspect the codebase, run it locally, customize workflows, and use your own models without vendor lock in.

Which AI models work best with Sero?

Sero works great with lightweight local models like Qwen 3.5, Llama, Mistral, and DeepSeek through Ollama. These models run smoothly on most modern MacBooks including base M series devices.

Do I need an internet connection?

No. Once your models are installed, Sero works fully offline. You can search, chat, summarize, and analyze documents without needing cloud access.

Can Sero handle large document collections?

Yes. Sero is built to index folders, notes, PDFs, markdown files, and research archives into a searchable local workspace optimized for fast retrieval and semantic search.

Will Sero work on my MacBook?

Most likely yes. Sero is optimized for Apple Silicon and works well across MacBook Air, MacBook Pro, Mac Mini, and Studio devices. Even base M1 and M2 systems can run recommended lightweight models comfortably.

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Open source • Fully local • Built for macOS

Talk to your documents
completely offline

Search, analyse, and explore PDFs, notes, research folders, and local files using fast open source AI models directly on your Mac.