Scour Alpha Instant file search for Linux.

Scour keeps your files and folders in its own index and answers searches from it, without walking the disk again. Use it from a desktop window, the terminal or the browser.

The Scour desktop window: a highlighted query, the kind rail and the result list.
Query: kind:code dm:7d size:>10kb — three filters, 21.99 ms.
Platform
Linux x86_64
Version
0.2.0‑alpha.1
License
MIT / Apache‑2.0
Account, network
None
Source code on GitHub

Measurements

7.9ms

for a one-word search

End to end: socket, parsing, search, sorting, counting and forty rows included.

4,842,854
files and folders indexed
a home directory, a second NTFS volume and the system
493 MB
the index on disk
memory-mapped; the kernel can reclaim it under pressure
0.8%
of one core while idle
two volumes watched live, nobody looking

Every number was taken from a running installation on 9 September 2026 with scripts/bench. The method and the raw figures are in the repository: MEASUREMENTS.md ↗

One query, four faces

The three pictures were taken at the same moment, on the same machine, from the same query. The only difference is what you are looking at.

Query kind:code dm:7d size:>10kb

Scour’s browser face: the same query, kind filters on the left, the result table.

A local bridge, not a remote server

It opens a port on your own machine and serves the page from there. The grid view, CSV export, duplicate finding and the report tab live here.

Query language

A space is AND, | is OR, ! is NOT; quotes make a phrase, * and ? are wildcards, field:value narrows. One word on its own is enough, and field names can be written in Turkish too. An unknown field is not an error; it is searched for as text.

scour explain says how a query was read; scour syntax prints the whole list.

Query language in the docs
QueryFinds
reportanything with that in its name
ext:pdf size:>1mbPDFs over a megabyte
kind:image dm:7dpictures changed this week
*.slint | *.rseither of the two
!target ext:tomlTOML files with no target in the name
user:root perm:/222files owned by root, writable by anyone

No network requests

All of Scour’s work happens on your own machine; there is no account and no cloud.

The index
Lives on your own disk; scour where prints where.
Browser face
Opens a port on your own machine only. The link carries a token that changes every run, and no port faces outward.
Language models
scour-mcp offers eleven read-only tools, and every answer is bounded.
Passwords
The install script never asks for one. Watching the filesystem live needs root once, and that is optional.

Watching the filesystem

Why not inotify
It wants one watch per directory, from a budget shared with your editor, your IDE and your file manager. On a machine with 609,322 folders, the 524,288 watches the kernel gives a session were not enough.
fanotify
It marks the filesystem itself rather than its directories: two volumes, two marks. The number of folders does not enter into it.
Root, once
scour-watch places the marks, drops the privilege and runs the service unprivileged. And it is optional: without it Scour still works, and changes take a little longer to appear.
How watching works

Install

The install script never asks for a password. Seven binaries go to ~/.local/bin, a menu entry and an icon to ~/.local/share; on GNOME and KDE it puts the window on Super + F. Deleting those files undoes it.

Download for Linux

File scour-0.2.0-alpha.1-linux-x86_64.tar.gz

tar xzf scour-0.2.0-alpha.1-linux-x86_64.tar.gz
cd scour-0.2.0-alpha.1-linux-x86_64
./install.sh
Distribution
The binaries are built against glibc 2.39: Ubuntu 24.04 and newer, Debian 13+, Fedora 40+ and any rolling distribution.
Older systems
Ubuntu 22.04 and Debian 12 carry an older glibc; there it builds from source.
Architecture
x86_64

Tested on Ubuntu 24.04 and Fedora, in clean containers, as a stranger would: the installer ran, all seven binaries reported their version, the service indexed the home directory; the command line searched, the terminal face drew, the browser face served its page and the window opened on a virtual display.

Good to know

Linux only, in practice
The Windows build was started once on one machine for an afternoon and is untested. macOS compiles and has never been run.
Version 0.2.0‑alpha.1
Alpha: in daily use on one machine; the index format may change. Report problems on GitHub.