diff --git a/src/exported-utils.ts b/src/exported-utils.ts
index 996af136..bb69da46 100644
--- a/src/exported-utils.ts
+++ b/src/exported-utils.ts
@@ -6,3 +6,7 @@ export {
     parseGenomicPosition
 } from './core/utils/assembly';
 export { sanitizeChrName } from './data-fetchers/utils';
+
+// These are experimental and may be removed in the future
+export { convertToFlatTracks as _convertToFlatTracks } from './compiler/spec-preprocess';
+export { spreadTracksByData as _spreadTracksByData } from './core/utils/overlay';