Organize once
A useful connection follows the item into every view.
Own your digital world. Shape it around you.
Turn any file into something you can understand and find again. Add rich-text notes, tags, mentions, and properties, then browse everything instantly, even offline. Sync across devices or self-host for complete control.
Works offlineSyncs across devicesSelf-hostableNo lock-in
browse intuitively
The file is only part of the story.
Heaper gives every file, photo, and note a block around it that you can enrich without changing the original. Add notes, people, properties, tasks, and links, so the context stays attached and searchable. When a pattern repeats, turn any tag into a type with reusable properties.
Presentation + handoff Note who should receive it and what this version is still missing. The PowerPoint itself stays untouched.
3D model + purpose Record what a model is for, which part it fits, or how it should be printed, then find it by meaning instead of filename.
Photo + backstory Keep names, family history, and what happened around the moment. Preserve the parts of a memory the picture cannot show.
One library. Many ways to use it.
Move between files, media, documents, tasks, calendars, boards, tables, and a graph. Each view interprets the same connected information instead of making you rebuild it in separate tools.
See it differently
Turn the same library into a grid, list, board, task view, or graph.
Find it from anywhere
Search and relationships bring the right context back when you need it.
Opinionated. Independent. Built to last.
Heaper is built in Hamburg by Jan Lunge. It has been worked on and refined for about 18 years. No investor or ad business gets to decide what happens to your digital home.
Less app-hopping. More useful context.
Heaper keeps the thing itself and everything you know about it close together.
Keep the whole project together.
Put documents, reference files, notes, and tasks in one connected project. Stop reconstructing the story from five different apps.
Give your photos and files context.
Keep the memory, description, people, date, and related material with the file instead of losing the meaning in a filename.
Find things by meaning, not by path.
Tags, mentions, and backlinks let one thing belong in several useful places without making copies or choosing one perfect folder.
Your home should belong to you.
Heaper is designed around access, portability, and control, without trapping your digital life inside somebody else's business model.
Local-first
The native app keeps your working library close and responsive on your device.
Works offline
Keep organizing, writing, and browsing when the internet is unavailable.
Choose where it syncs
Use Heaper’s privacy-focused Swiss cloud or run the server on your own hardware.
Leave whenever you want
Open exports and direct data access mean your information is never held hostage.
Self-host free with unlimited storage through August 31, 2026.
Try Heaper on your own server before perpetual licenses become purchasable.
Built for people first. Ready for the tools you choose.
Stable links and shared structure give authorized tools useful context without making an AI provider the owner of your library.
Structured access through CLI and MCP
Tools you authorize can work with blocks, documents, relations, properties, and files through Heaper's existing interfaces.
More capable help on the same owned foundation
Richer agent workflows can grow around the same connected context while Heaper remains the source of truth you control.
Modern power under the hood
Offline-first. Merge-smart. Cloud-optional.
Real-time collaboration
Work together without conflicts. All changes merge automatically using CRDTs, even from offline devices.
Instant full-text search
Find anything across all your notes and files instantly. Search works offline and respects your privacy.
Media-aware previews
Beautiful previews for photos, videos, and audio files. See thumbnails, durations, and metadata at a glance.
Smart deduplication
Files are deduplicated by content hash. Save the same file multiple times, store it once.
All devices supported
Web, macOS, Windows, Linux, Android, iOS. Your workspace follows you everywhere.
Swiss cloud or self-host
Choose our privacy-focused Swiss hosting or run on your own NAS. You decide where your data lives.
Connect with the community
Use the feedback portal for bugs and feature requests. Join Discord for build updates, setup help, and chat with Jan and other Heaper users.
Or write me at feedback@heaper.de.
Make Heaper your digital home.
Start free on the devices you already use. Bring your files, notes, media, and projects together at your own pace.
Crafted with care by Jan Lunge
Independent software for independent minds