Free & open source·Self-host with your own API keys·Apache 2.0 licensed
Your knowledge graph · 23 sources
0 in scope
0 sources⌘↵
The pipeline
Gmail threads, Notion pages, PDFs, call recordings, and your GitHub repos stream into one living knowledge graph. Embeddings index meaning — not just keywords — so every LLM, agent, and workflow queries the same brain, with citations, every time.
Sources
Index
Consumers
Gmail
email · 14,204
Notion
docs · 312 pages
PDF
files · 87 uploaded
Audio
recordings · 42
GitHub
repos · 6 connected
OpenAI
gpt-5 · embed-3
Anthropic
claude-sonnet-4.5
Claude Code
agent · long-running
n8n
workflow · 14 nodes
Embeddings1,536 dim · cosine
Your data, indexed, queryable.
Sources · Knowledge graph · Embeddings · Any model, any workflow
12+
Document types
<2s
Response time
99%
AI accuracy
5k+
Docs analyzed
The problem
Your best thinking is stranded across eight apps.
You took the meeting. You saved the PDF. You wrote the Notion doc. But when you need to answer “what did our users actually care about?” — it’s buried. Launchstack fixes the last mile.
Without Launchstack
×Open 6 tabs just to answer one question
×Re-listen to calls because search can’t find audio
×Gmail threads forgotten after two weeks
×ChatGPT hallucinates — it doesn’t know your context
With Launchstack
✓One place for files, recordings, docs, and inboxes
✓Transcription + search across every mp3 and mp4
✓Gmail & Notion sync live — not a one-shot import
✓Cited answers — click the chip, see the exact paragraph
Everything plugs in
If it has words, sound, or pixels, Launchstack reads it.
Connect the apps where your thinking already lives. Drag in files of almost any format — we handle transcription, OCR, and chunking automatically.
Gmail
Threads, labels, attachments. Scope by label.
Live
Notion
Pages, databases, nested blocks — live sync.
Live
Google Drive
Docs, Sheets, PDFs — folder-scoped.
Live
Slack
Channels + DMs. Pick what’s in scope.
Live
GitHub
Issues, PRs, READMEs, your own gists.
Live
Dropbox
Files + Paper docs, folder-scoped.
Live
Linear
Issues, projects, cycles — searchable.
Beta
Calendar
Events + attendees give calls context.
Beta
How it works
Three steps. Zero setup.
Drop in, check what matters, ask. The hero above is the actual product.
01
Drop everything in
Drag a folder, paste a URL, upload a call recording, or click one button to connect Gmail and Notion. Launchstack handles transcription and indexing.
02
Check what matters
Your sources appear in a clean rail. Tick the ones you want in scope for this question. Leave the rest alone.
03
Ask. Get cited answers.
Type your question in plain English. Launchstack synthesizes across every checked source — and every claim links to the exact paragraph or timestamp.
Loved by builders
Used by founders and developers.
Launchstack replaced a stack of tools in an afternoon. Being able to see which PDFs go into the context is the feature I didn’t know I needed.
AF
Anonymous
Founder
I run dozens of user interviews a month. Transcription, batch Q&A, and timestamped quotes all in one place has been a huge time-saver.
AD
Anonymous
Developer
The graph view is what sold me. I didn’t realize how much of my thinking lives in the connections between docs until I could see them.
SF
Anonymous
Solo founder
Pricing
Open source. Pay for models, not connectors.
Fully open source — unlimited connectors and workspaces on every tier. Hosted pricing covers LLM and API keys only; we don't charge per source or seat. Your library stays yours — export anytime.
Yes — the retrieval core (chunking, embeddings, graph, cited synthesis) is Apache 2.0–licensed on GitHub. The hosted app adds the polished UI, connectors, and billing — you can skip all of that and run the engine yourself.
Do you train on my data?
Never — we do not train on your data. Your sources stay in your workspace. For maximum control, self-host with your own API keys so only the LLM calls you explicitly enable leave your environment.
What happens to my Gmail/Notion data?
We read via OAuth — scoped to the folders/labels you pick. Content is encrypted at rest. Revoke anytime; your index is deleted within 24 hours.
Do I need my own API keys?
Yes — self-hosted Launchstack uses your own OpenAI, Anthropic, or Google AI keys. You are not locked into our pricing and you maintain full control over your AI usage and costs.
Can I edit sources inside Launchstack?
Yes — markdown docs and transcripts are fully editable with auto-snapshot version history. PDFs and media are annotation-only.
Built in the open
The engine is open source. Read it. Fork it. Run it.
The core retrieval pipeline — chunking, embedding, graph construction, and cited synthesis — lives on GitHub under Apache 2.0. Audit the prompts, swap the model, self-host the whole thing. We keep the hosted app polished so you don’t have to; but the brain is yours either way.