Synvala

The lab notebook for organic chemistry.

Plan reactions. Screen conditions. Export publication-ready SI. All in one desktop app — your data never leaves your computer.

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Windows & macOS · No account · No cloud · 100% offline

Multistep Synthesis — Ketcher structure drawing with auto-calculated mass, volume, and equivalents across multiple steps

Multistep Synthesis — Ketcher structure drawing with auto-calculated mass, volume, and equivalents across multiple steps

4
Experiment Types
5
Languages
0
Cloud Dependencies
∞
Experiments (Free)

What You Can Do

Every tool a chemist needs.

Multistep synthesis with structure drawing
Reaction Setup

Every reagent, calculated.

Search PubChem, draw structures with Ketcher, set one reference — every mass, volume, and equivalent auto-calculates.

Chemical database
Chemical Database

Your compound library.

Structure cards, tag filtering, storage locations, and one-click PubChem import.

Reaction scheme and procedure
Procedure

Scheme to write-up.

Auto-generated reaction scheme with step-by-step procedure recording.

PDF export
PDF Export

Publication ready.

Reaction schemes, reagent tables, procedures, and spectra — all in one PDF.

Markdown notebook
Notebook

Obsidian-compatible.

Markdown notes with [[experiment links]], live preview, and embedded data cards.

Four Experiment Types

One app for every workflow.

🧪

Synthesis

Single-reaction experiments with full reagent setup, procedures, results, and spectra.

📊

Screening

Multi-condition optimization. Compare catalysts, ligands, solvents side-by-side.

PRO
🔗

Multistep

Multi-step routes with automatic product carry-over between steps.

PRO
🎯

Substrate Scope

Full characterization + SI export as formatted text or Word document.

PRO

And everything else

Built for real lab work.

Not another generic note-taking app. Every feature was designed with organic chemistry workflows in mind.

🤖

AI Assistant

Chat with Claude, Ollama, Google AI. Plan experiments by voice or text.

📓

Notebook

Obsidian-compatible Markdown notes with [[links]], #tags, and templates.

🔬

Spectra

NMR, IR, HRMS, GC-MS. Import from MNova. Interactive JCAMP viewer.

📱

Mobile Access

Access experiments from any device on your network. No cloud.

📄

PDF Export

Publication-quality PDF with reaction schemes, tables, and spectra.

🔒

Local & Private

SQLite on your machine. No account. No tracking. No data leaves.

🌍

5 Languages

中文, English, 日本語, Deutsch, Français. Five beautiful themes.

⚡

MCP Server

Let Claude Desktop read your experiments and notes directly.

Support

We'd love to hear from you.

Questions, feedback, or found a bug? Reach out anytime.

✉️

Get in Touch

Have a question or feature request? Send us an email and we'll get back to you.

synvalav0@gmail.com
🐛

Report a Bug

Found something broken? Open an issue on GitHub with steps to reproduce.

Open GitHub Issue

Start recording experiments today.

Free forever for synthesis. Upgrade when you're ready to publish.

Download Synvala