SoloSheet

"Sum to the Highest" — a spreadsheet built on the open .sheet format. Local, private, and lean. Part of the SoloGrove family.

What it does

• Wiki-linked sheets — every .sheet file is a single spreadsheet, linkable to others the way wikis link pages, right inside formulas: =[[sales]]!B4, =SUM([[sales]]!A1:A20), =[[q1]]!A1 + [[q2]]!A1.
• An open format — clean, structured JSON that any person, program, or AI can parse. No XML, no lock-in. Open a .sheet in a text editor and read your own data. Spec: solosheet.org/format.
• Local & private — 100% offline, zero telemetry, no accounts. There is no code in it that opens a socket. Your files are just files.
• Lean by design — as Markdown is to Word, SoloSheet is to Excel: fewer features, so it stays simple, fast, portable, and future-proof. CSV import and export move data in and out.
• One experience — built on solocore: the same look and behavior on Linux, BSD, macOS, and Windows, multilingual by design with full right-to-left support.

Install

Full per-platform instructions live at solosheet.org/install. The short version:

Linux (pipx from your distro, e.g. apt install pipx libxcb-cursor0):

pipx install solosheet
pipx ensurepath
solosheet-desktop install

Windows (no Python needed — uv brings its own):

winget install astral-sh.uv
uv tool install solosheet
solosheet-desktop install

FreeBSD (Qt from ports; the one extra flag is what lets pipx see it):

pkg install py312-pipx py312-pyside6
pipx install --system-site-packages solosheet
solosheet-desktop install

macOS: see solosheet.org — macOS installs a signed-by-checksum .dmg rather than the PyPI package.

solosheet-desktop install registers the launcher, the .sheet file association, and the document icon — per-user, no root, no admin.

Requirements

Python 3.10+. Qt arrives automatically as a PySide6 wheel (6.8+) — nothing to install separately. On Linux the wheels need glibc ≥ 2.34 (x86_64: Debian 12+, Ubuntu 22.04+, Fedora 35+, RHEL 9+, Arch, Tumbleweed) or glibc ≥ 2.39 (ARM64: Ubuntu 24.04+, Debian 13+, Raspberry Pi OS trixie); floors current as of PySide6 6.11. Musl distributions are not supported. Windows 10 (1809)+ on x64 or native ARM64.

Updating

SoloSheet never checks for updates — that is a promise, not a gap. Subscribe to the release feed, then pipx upgrade solosheet (or uv tool upgrade solosheet) when you choose to.

GPL-3.0-or-later. The sdist beside every wheel carries the complete source.