diff --git a/.changeset/full-plums-attend.md b/.changeset/full-plums-attend.md
new file mode 100644
index 0000000..fbbd4b4
--- /dev/null
+++ b/.changeset/full-plums-attend.md
@@ -0,0 +1,5 @@
+---
+"unpic": minor
+---
+
+feat(ipx): improve ipx provider typing and test coverage
diff --git a/src/providers/ipx.test.ts b/src/providers/ipx.test.ts
index d1aa51e..f3ab7d2 100644
--- a/src/providers/ipx.test.ts
+++ b/src/providers/ipx.test.ts
@@ -32,6 +32,21 @@ Deno.test("ipx extract", async (t) => {
 			format: "webp",
 		});
 	});
+
+	await t.step("should extract crop with URL-encoded underscores", () => {
+		const url = `${baseURL}/crop_100%5F50%5F300%5F200,f_auto/images/test.jpg`;
+		const result = extract(url);
+		assertEquals(result?.src, "/images/test.jpg");
+		assertEquals(result?.operations.crop, "100_50_300_200");
+	});
+
+	await t.step("should extract fit and position", () => {
+		const url =
+			`${baseURL}/s_800x600,fit_cover,position_top,f_auto/images/test.jpg`;
+		const result = extract(url);
+		assertEquals(result?.operations.fit, "cover");
+		assertEquals(result?.operations.position, "top");
+	});
 });
 
 Deno.test("ipx generate", async (t) => {
@@ -139,3 +154,36 @@ Deno.test("ipx transform", async (t) => {
 		);
 	});
 });
+
+Deno.test("ipx generate with extended operations", async (t) => {
+	await t.step("should generate URL with crop", () => {
+		const result = generate(
+			img,
+			{ width: 800, height: 600, crop: "100_50_300_200" },
+			{ baseURL },
+		);
+		assertEquals(result.includes("crop_100%5F50%5F300%5F200"), true);
+		assertEquals(result.includes("s_800x600"), true);
+	});
+
+	await t.step("should generate URL with fit and position", () => {
+		const result = generate(
+			img,
+			{ width: 800, height: 600, fit: "cover", position: "top" },
+			{ baseURL },
+		);
+		assertEquals(result.includes("fit_cover"), true);
+		assertEquals(result.includes("position_top"), true);
+	});
+
+	await t.step("should generate URL with effects", () => {
+		const result = generate(
+			img,
+			{ width: 300, rotate: 90, blur: 5, grayscale: true },
+			{ baseURL },
+		);
+		assertEquals(result.includes("rotate_90"), true);
+		assertEquals(result.includes("blur_5"), true);
+		assertEquals(result.includes("grayscale_true"), true);
+	});
+});
diff --git a/src/providers/ipx.ts b/src/providers/ipx.ts
index 978259a..04cf2e4 100644
--- a/src/providers/ipx.ts
+++ b/src/providers/ipx.ts
@@ -38,6 +38,78 @@ export interface IPXOperations extends Operations {
 	 * Output format of the image.
 	 */
 	f?: ImageFormat | "auto";
+
+	/**
+	 * Resize fit mode. Only applies when both width and height are specified.
+	 */
+	fit?: "contain" | "cover" | "fill" | "inside" | "outside";
+
+	/**
+	 * Position/gravity for resize. Only applies when both width and height are specified.
+	 * @example "top"
+	 */
+	position?: string;
+
+	/**
+	 * Alias for position.
+	 */
+	pos?: string;
+
+	/**
+	 * Extract/crop a region of the image.
+	 * Format: "left_top_width_height"
+	 * @example "100_50_300_200"
+	 */
+	extract?: string;
+
+	/**
+	 * Alias for extract.
+	 */
+	crop?: string;
+
+	/**
+	 * Rotation angle in degrees.
+	 * @example 90
+	 */
+	rotate?: number;
+
+	/**
+	 * Flip image vertically.
+	 */
+	flip?: boolean;
+
+	/**
+	 * Flip image horizontally.
+	 */
+	flop?: boolean;
+
+	/**
+	 * Blur sigma value.
+	 * @example 5
+	 */
+	blur?: number;
+
+	/**
+	 * Sharpen sigma value.
+	 * @example 30
+	 */
+	sharpen?: number;
+
+	/**
+	 * Convert to grayscale.
+	 */
+	grayscale?: boolean;
+
+	/**
+	 * Background color (hex without #).
+	 * @example "ff0000"
+	 */
+	background?: string;
+
+	/**
+	 * Alias for background.
+	 */
+	b?: string;
 }
 
 export interface IPXOptions {