diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/utils/ImageSuffix.java b/extractor/src/main/java/org/schabi/newpipe/extractor/utils/ImageSuffix.java
new file mode 100644
index 000000000..d1ba7359c
--- /dev/null
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/utils/ImageSuffix.java
@@ -0,0 +1,104 @@
+package org.schabi.newpipe.extractor.utils;
+
+import org.schabi.newpipe.extractor.Image.ResolutionLevel;
+
+import javax.annotation.Nonnull;
+import java.io.Serializable;
+import java.util.Objects;
+
+/**
+ * Serializable class representing a suffix (including its format extension, such as {@code .jpg})
+ * which needs to be added to get an image/thumbnail URL with its corresponding height, width and
+ * estimated resolution level.
+ *
+ * <p>
+ * This class is used to construct {@link org.schabi.newpipe.extractor.Image Image}
+ * instances from a single base URL/path, in order to get all or most image resolutions provided,
+ * depending of the service and the resolutions provided.
+ * </p>
+ *
+ * <p>
+ * Note that this class is not intended to be used externally and so should only be used when
+ * interfacing with the extractor.
+ * </p>
+ */
+public final class ImageSuffix implements Serializable {
+    @Nonnull
+    private final String suffix;
+    private final int height;
+    private final int width;
+    @Nonnull
+    private final ResolutionLevel resolutionLevel;
+
+    /**
+     * Create a new {@link ImageSuffix} instance.
+     *
+     * @param suffix                   the suffix string
+     * @param height                   the height corresponding to the image suffix
+     * @param width                    the width corresponding to the image suffix
+     * @param estimatedResolutionLevel the {@link ResolutionLevel} of the image suffix, which must
+     *                                 not be null
+     * @throws NullPointerException if {@code estimatedResolutionLevel} is {@code null}
+     */
+    public ImageSuffix(@Nonnull final String suffix,
+                       final int height,
+                       final int width,
+                       @Nonnull final ResolutionLevel estimatedResolutionLevel)
+            throws NullPointerException {
+        this.suffix = suffix;
+        this.height = height;
+        this.width = width;
+        this.resolutionLevel = Objects.requireNonNull(estimatedResolutionLevel,
+                "estimatedResolutionLevel is null");
+    }
+
+    /**
+     * @return the suffix which needs to be appended to get the full image URL
+     */
+    @Nonnull
+    public String getSuffix() {
+        return suffix;
+    }
+
+    /**
+     * @return the height corresponding to the image suffix, which may be unknown
+     */
+    public int getHeight() {
+        return height;
+    }
+
+    /**
+     * @return the width corresponding to the image suffix, which may be unknown
+     */
+    public int getWidth() {
+        return width;
+    }
+
+    /**
+     * @return the estimated {@link ResolutionLevel} of the suffix, which is never null.
+     */
+    @Nonnull
+    public ResolutionLevel getResolutionLevel() {
+        return resolutionLevel;
+    }
+
+    /**
+     * Get a string representation of this {@link ImageSuffix} instance.
+     *
+     * <p>
+     * The representation will be in the following format, where {@code suffix}, {@code height},
+     * {@code width} and {@code resolutionLevel} represent the corresponding properties:
+     * <br>
+     * <br>
+     * {@code ImageSuffix {url=url, height=height, width=width, resolutionLevel=resolutionLevel}'}
+     * </p>
+     *
+     * @return a string representation of this {@link ImageSuffix} instance
+     */
+    @Nonnull
+    @Override
+    public String toString() {
+        return "ImageSuffix {" + "suffix=" + suffix + ", height=" + height + ", width="
+                + width + ", resolutionLevel=" + resolutionLevel + "}";
+    }
+}