diff --git a/Cargo.lock b/Cargo.lock
index 804cc918f836d72f2dec229754e3021070773200..d1f0fe356691a12344fb509e59aceba256f5153f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -448,12 +448,6 @@ version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53"
 
-[[package]]
-name = "base64"
-version = "0.22.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
-
 [[package]]
 name = "base64"
 version = "0.23.1"
@@ -999,7 +993,7 @@ checksum = "d8b14ccef22fc6f5a8f4d7d768562a182c04ce9a3b3157b91390b52ddfdf1a76"
 name = "draw"
 version = "0.1.0"
 dependencies = [
- "base64 0.22.1",
+ "base64",
  "bytemuck",
  "image",
  "linebender_resource_handle",
@@ -2079,7 +2073,7 @@ name = "notebook"
 version = "0.1.0"
 dependencies = [
  "aes-gcm",
- "base64 0.22.1",
+ "base64",
  "cab",
  "getrandom 0.4.3",
  "hmac",
@@ -2468,7 +2462,7 @@ name = "onestore"
 version = "0.1.0"
 dependencies = [
  "aes",
- "base64 0.22.1",
+ "base64",
  "bumpalo",
  "cbc",
  "file-guard",
@@ -4015,7 +4009,7 @@ version = "3.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a7ac20be9b7726e0bbdbf974c059676d9acb1cd414961f570a4e8231cacd7fc"
 dependencies = [
- "base64 0.23.1",
+ "base64",
  "log",
  "percent-encoding",
  "rustls",
@@ -4031,7 +4025,7 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f86fd172ccca569e458f61b6bdd6220965a9ef36e672a6852953b51a0e1583be"
 dependencies = [
- "base64 0.23.1",
+ "base64",
  "http",
  "httparse",
  "log",
diff --git a/crates/draw/Cargo.toml b/crates/draw/Cargo.toml
index 3814408b20b83257f9ab06b9a828dba57d46d7aa..aa8792578116a7e385e6d1fcf41b2bb55f057622 100644
--- a/crates/draw/Cargo.toml
+++ b/crates/draw/Cargo.toml
@@ -19,7 +19,7 @@ parley.workspace = true
 # std's clock where there is one; the browser's on wasm32-unknown-unknown, whose std has none.
 web-time = "1.1"
 
-base64 = { version = "0.22.1", optional = true }
+base64 = { version = "0.23.1", default-features = false, features = ["std"], optional = true }
 bytemuck = { version = "1.25", features = ["derive"], optional = true }
 image = { version = "0.25", default-features = false, features = ["gif", "jpeg", "png", "tiff"], optional = true }
 linebender_resource_handle = { version = "0.1.1", optional = true }
diff --git a/crates/notebook/Cargo.toml b/crates/notebook/Cargo.toml
index 64d8d9a330acfabf4465ec6cb20fab2ae49dfec1..649b79c1f3c5143a8bd8283118c4381788342d4d 100644
--- a/crates/notebook/Cargo.toml
+++ b/crates/notebook/Cargo.toml
@@ -20,7 +20,7 @@ tokio = { version = "1", features = ["rt-multi-thread", "time"], optional = true
 zeroize = "1.9.0"
 # Queued edits of a password-protected section are sealed under a key derived from its own.
 aes-gcm = "0.11.1"
-base64 = "0.22.1"
+base64 = { version = "0.23.1", default-features = false, features = ["std"] }
 getrandom = "0.4.3"
 hmac = "0.13.0"
 # OneNote packages (.onepkg) are cabinet files.
diff --git a/crates/onestore/Cargo.toml b/crates/onestore/Cargo.toml
index 57382db507a815990a9a092b240f1fc446490907..b26e624914a0ccbf3452f5541c2b02de114ba4cc 100644
--- a/crates/onestore/Cargo.toml
+++ b/crates/onestore/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 publish = false
 
 [dependencies]
-base64 = "0.22.1"
+base64 = { version = "0.23.1", default-features = false, features = ["std"] }
 bumpalo = "3.20.3"
 serde_json = "1.0.151"
 md5 = "0.8.1"
diff --git a/fuzz/Cargo.lock b/fuzz/Cargo.lock
index da5b1685e618449b9ff72ad40e06f72e72fc798d..56b37a472cc15ccc04d42e79187187f87c6e03fe 100644
--- a/fuzz/Cargo.lock
+++ b/fuzz/Cargo.lock
@@ -52,9 +52,9 @@ checksum = "c3d036a3c4ab069c7b410a2ce876bd74808d2d0888a82667669f8e783a898bf1"
 
 [[package]]
 name = "base64"
-version = "0.22.1"
+version = "0.23.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+checksum = "ac07cdecf99051d9a5238b80f35af32cdeba5b336e55d957b318b50137e18da5"
 
 [[package]]
 name = "bitflags"
@@ -136,6 +136,7 @@ dependencies = [
  "serde",
  "serde_json",
  "skrifa",
+ "web-time",
 ]
 
 [[package]]
@@ -292,6 +293,7 @@ name = "draw"
 version = "0.1.0"
 dependencies = [
  "parley",
+ "web-time",
 ]
 
 [[package]]
@@ -384,6 +386,30 @@ dependencies = [
  "yeslogic-fontconfig-sys",
 ]
 
+[[package]]
+name = "futures-core"
+version = "0.3.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "92d699e522242e69e3003b94ecc1f960f3a5e015aa7c5d7486e65ad01dd94f5e"
+
+[[package]]
+name = "futures-task"
+version = "0.3.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd417de3d1d015fc3bfd2b1ea46dfc7bab72ef86f1cc7cc9c78e728b34a6d1fd"
+
+[[package]]
+name = "futures-util"
+version = "0.3.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d50a92467f8ba5dd6e3ee5d4bd04d73ab2e4e1c44474a0674821dfce14b79bc"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "pin-project-lite",
+ "slab",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.4.3"
@@ -391,9 +417,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "300e883d756b2e4ec94e02791f39b04b522276138852cfc41d9fb7e904106099"
 dependencies = [
  "cfg-if",
+ "js-sys",
  "libc",
  "r-efi",
  "rand_core",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -627,6 +655,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce57d20d1ea864ce2ac172ab472d409214f4fd359f0b2a2775abdf522e2af99e"
 dependencies = [
  "cfg-if",
+ "futures-util",
  "wasm-bindgen",
 ]
 
@@ -743,14 +772,19 @@ dependencies = [
  "cab",
  "getrandom",
  "hmac",
+ "js-sys",
  "nix",
  "onestore",
+ "rsqlite-vfs",
  "rusqlite",
  "serde",
  "serde_json",
  "sha2",
  "tempfile",
  "thiserror",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-time",
  "windows-sys",
  "zeroize",
 ]
@@ -828,6 +862,7 @@ dependencies = [
  "serde_json",
  "sha1",
  "subtle",
+ "web-time",
  "zeroize",
 ]
 
@@ -889,6 +924,12 @@ dependencies = [
  "skrifa",
 ]
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a89322df9ebe1c1578d689c92318e070967d1042b512afbe49518723f4e6d5cd"
+
 [[package]]
 name = "pkg-config"
 version = "0.3.34"
@@ -1104,6 +1145,12 @@ dependencies = [
  "read-fonts",
 ]
 
+[[package]]
+name = "slab"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c790de23124f9ab44544d7ac05d60440adc586479ce501c1d6d7da3cd8c9cf5"
+
 [[package]]
 name = "smallvec"
 version = "1.16.0"
@@ -1283,6 +1330,16 @@ dependencies = [
  "wasm-bindgen-shared",
 ]
 
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.78"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ef4c5d3d2cdf5c54f4231181768f5510842e350db025faf1f7163b1030ed928"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "wasm-bindgen-macro"
 version = "0.2.128"
@@ -1315,6 +1372,16 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "web-time"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a6580f308b1fad9207618087a65c04e7a10bc77e02c8e84e9b00dd4b12fa0bb"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"