diff --git a/Cargo.lock b/Cargo.lock
index 41be304..4d39ef4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -93,8 +93,20 @@ name = "archivr-cli"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "archivr-core",
  "chrono",
  "clap",
+ "regex",
+ "rusqlite",
+ "serde_json",
+]
+
+[[package]]
+name = "archivr-core"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "chrono",
  "hex",
  "regex",
  "rusqlite",
diff --git a/Cargo.toml b/Cargo.toml
index f6902f8..68cb6ba 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,6 @@
 [workspace]
 members = [
+    "crates/archivr-core",
     "crates/archivr-cli",
 ]
 resolver = "2"
diff --git a/crates/archivr-cli/Cargo.toml b/crates/archivr-cli/Cargo.toml
index 5f70d01..3a190d7 100644
--- a/crates/archivr-cli/Cargo.toml
+++ b/crates/archivr-cli/Cargo.toml
@@ -8,12 +8,10 @@ name = "archivr"
 path = "src/main.rs"
 
 [dependencies]
+archivr-core = { path = "../archivr-core" }
 anyhow.workspace = true
 chrono.workspace = true
 clap.workspace = true
-hex.workspace = true
 regex.workspace = true
 rusqlite.workspace = true
 serde_json.workspace = true
-sha3.workspace = true
-uuid.workspace = true
diff --git a/crates/archivr-cli/src/main.rs b/crates/archivr-cli/src/main.rs
index 22ce63d..1279780 100644
--- a/crates/archivr-cli/src/main.rs
+++ b/crates/archivr-cli/src/main.rs
@@ -1,4 +1,5 @@
 use anyhow::{Context, Result};
+use archivr_core::{database, downloader, twitter::parse_tweet_id};
 use chrono::Local;
 use clap::{Parser, Subcommand};
 use serde_json::json;
@@ -9,11 +10,6 @@ use std::{
     process,
 };
 
-mod database;
-mod downloader;
-mod hash;
-mod twitter;
-
 #[derive(Parser, Debug)]
 #[command(version, about, long_about = None)]
 struct Args {
@@ -87,8 +83,6 @@ enum Source {
     Other,
 }
 
-use crate::twitter::parse_tweet_id;
-
 fn expand_shorthand_to_url(path: &str, source: &Source) -> String {
     if *source == Source::X && (path.starts_with("tweet:media:") || path.starts_with("x:media:")) {
         if let Some(tweet_id) = path.split(':').next_back().and_then(parse_tweet_id) {
diff --git a/crates/archivr-core/Cargo.toml b/crates/archivr-core/Cargo.toml
new file mode 100644
index 0000000..0a1da07
--- /dev/null
+++ b/crates/archivr-core/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "archivr-core"
+version.workspace = true
+edition.workspace = true
+
+[dependencies]
+anyhow.workspace = true
+chrono.workspace = true
+hex.workspace = true
+regex.workspace = true
+rusqlite.workspace = true
+serde_json.workspace = true
+sha3.workspace = true
+uuid.workspace = true
diff --git a/crates/archivr-cli/src/database.rs b/crates/archivr-core/src/database.rs
similarity index 100%
rename from crates/archivr-cli/src/database.rs
rename to crates/archivr-core/src/database.rs
diff --git a/crates/archivr-cli/src/downloader/local.rs b/crates/archivr-core/src/downloader/local.rs
similarity index 100%
rename from crates/archivr-cli/src/downloader/local.rs
rename to crates/archivr-core/src/downloader/local.rs
diff --git a/crates/archivr-cli/src/downloader/mod.rs b/crates/archivr-core/src/downloader/mod.rs
similarity index 100%
rename from crates/archivr-cli/src/downloader/mod.rs
rename to crates/archivr-core/src/downloader/mod.rs
diff --git a/crates/archivr-cli/src/downloader/store.rs b/crates/archivr-core/src/downloader/store.rs
similarity index 100%
rename from crates/archivr-cli/src/downloader/store.rs
rename to crates/archivr-core/src/downloader/store.rs
diff --git a/crates/archivr-cli/src/downloader/tweets.rs b/crates/archivr-core/src/downloader/tweets.rs
similarity index 99%
rename from crates/archivr-cli/src/downloader/tweets.rs
rename to crates/archivr-core/src/downloader/tweets.rs
index dc430d6..22d8bff 100644
--- a/crates/archivr-cli/src/downloader/tweets.rs
+++ b/crates/archivr-core/src/downloader/tweets.rs
@@ -10,9 +10,7 @@ use std::{
     sync::OnceLock,
 };
 
-use crate::twitter::parse_tweet_id;
-
-use super::store;
+use crate::{downloader::store, twitter::parse_tweet_id};
 
 /// Extracts a tweet ID from an archivr path like `"tweet:123"` by taking the
 /// last colon-separated segment and validating it as a numeric ID.
diff --git a/crates/archivr-cli/src/downloader/ytdlp.rs b/crates/archivr-core/src/downloader/ytdlp.rs
similarity index 100%
rename from crates/archivr-cli/src/downloader/ytdlp.rs
rename to crates/archivr-core/src/downloader/ytdlp.rs
diff --git a/crates/archivr-cli/src/hash.rs b/crates/archivr-core/src/hash.rs
similarity index 100%
rename from crates/archivr-cli/src/hash.rs
rename to crates/archivr-core/src/hash.rs
diff --git a/crates/archivr-core/src/lib.rs b/crates/archivr-core/src/lib.rs
new file mode 100644
index 0000000..50e268b
--- /dev/null
+++ b/crates/archivr-core/src/lib.rs
@@ -0,0 +1,4 @@
+pub mod database;
+pub mod downloader;
+pub mod hash;
+pub mod twitter;
diff --git a/crates/archivr-cli/src/twitter.rs b/crates/archivr-core/src/twitter.rs
similarity index 100%
rename from crates/archivr-cli/src/twitter.rs
rename to crates/archivr-core/src/twitter.rs