diff --git a/packages/babel-plugin-proposal-export-namespace-from/test/fixtures/export-namespace/namespace-string/options.json b/packages/babel-plugin-proposal-export-namespace-from/test/fixtures/export-namespace/namespace-string/options.json
new file mode 100644
index 000000000000..fe3d1d2159ff
--- /dev/null
+++ b/packages/babel-plugin-proposal-export-namespace-from/test/fixtures/export-namespace/namespace-string/options.json
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    "external-helpers",
+    "proposal-export-namespace-from",
+    "syntax-module-string-names"
+  ]
+}
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/amd/export-from-string/input.mjs b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/export-from/input.mjs
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rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/export-from/input.mjs
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/loose/export-from-string/output.js b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/export-from/output.js
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diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/amd/export-named-string-can-be-identifier/input.mjs b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/export-named-string-can-be-identifier/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/loose/export-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/export-named-string-can-be-identifier/output.js
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diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/amd/export-named-string/input.mjs b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/export-named/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/loose/export-named-string/output.js b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/export-named/output.js
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rename from packages/babel-plugin-transform-modules-amd/test/fixtures/loose/export-named-string/output.js
rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/export-named/output.js
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/amd/imports-named-string-can-be-identifier/input.mjs b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/import-named-string-can-be-identifier/input.mjs
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rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/import-named-string-can-be-identifier/input.mjs
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/amd/imports-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/import-named-string-can-be-identifier/output.js
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rename from packages/babel-plugin-transform-modules-amd/test/fixtures/amd/imports-named-string-can-be-identifier/output.js
rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/import-named-string-can-be-identifier/output.js
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/amd/imports-named-string/input.mjs b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/import-named/input.mjs
similarity index 100%
rename from packages/babel-plugin-transform-modules-amd/test/fixtures/amd/imports-named-string/input.mjs
rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/import-named/input.mjs
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/amd/imports-named-string/output.js b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/import-named/output.js
similarity index 100%
rename from packages/babel-plugin-transform-modules-amd/test/fixtures/amd/imports-named-string/output.js
rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/import-named/output.js
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/options.json b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/options.json
new file mode 100644
index 000000000000..3571c3be3117
--- /dev/null
+++ b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names-loose/options.json
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    "external-helpers",
+    ["transform-modules-amd", { "loose": true }],
+    "syntax-module-string-names"
+  ]
+}
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/loose/export-from-string/input.mjs b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-from/input.mjs
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rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-from/input.mjs
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/amd/export-from-string/output.js b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-from/output.js
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rename from packages/babel-plugin-transform-modules-amd/test/fixtures/amd/export-from-string/output.js
rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-from/output.js
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/loose/export-named-string-can-be-identifier/input.mjs b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-named-string-can-be-identifier/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/amd/export-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-named-string-can-be-identifier/output.js
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rename from packages/babel-plugin-transform-modules-amd/test/fixtures/amd/export-named-string-can-be-identifier/output.js
rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-named-string-can-be-identifier/output.js
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/loose/export-named-string/input.mjs b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-named/input.mjs
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rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-named/input.mjs
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/amd/export-named-string/output.js b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-named/output.js
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rename from packages/babel-plugin-transform-modules-amd/test/fixtures/amd/export-named-string/output.js
rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/export-named/output.js
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/loose/imports-named-string-can-be-identifier/input.mjs b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/import-named-string-can-be-identifier/input.mjs
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rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/import-named-string-can-be-identifier/input.mjs
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/loose/imports-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/import-named-string-can-be-identifier/output.js
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rename from packages/babel-plugin-transform-modules-amd/test/fixtures/loose/imports-named-string-can-be-identifier/output.js
rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/import-named-string-can-be-identifier/output.js
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/loose/imports-named-string/input.mjs b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/import-named/input.mjs
similarity index 100%
rename from packages/babel-plugin-transform-modules-amd/test/fixtures/loose/imports-named-string/input.mjs
rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/import-named/input.mjs
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/loose/imports-named-string/output.js b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/import-named/output.js
similarity index 100%
rename from packages/babel-plugin-transform-modules-amd/test/fixtures/loose/imports-named-string/output.js
rename to packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/import-named/output.js
diff --git a/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/options.json b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/options.json
new file mode 100644
index 000000000000..f3ec3e4ef677
--- /dev/null
+++ b/packages/babel-plugin-transform-modules-amd/test/fixtures/interop-module-string-names/options.json
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    "external-helpers",
+    "transform-modules-amd",
+    "syntax-module-string-names"
+  ]
+}
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/export-from-string/input.mjs b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/export-from/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/export-from-string/output.js b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/export-from/output.js
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rename from packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/export-from-string/output.js
rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/export-from/output.js
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/export-named-string-can-be-identifier/input.mjs b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/export-named-string-can-be-identifier/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/export-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/export-named-string-can-be-identifier/output.js
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rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/export-named-string-can-be-identifier/output.js
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/export-named-string/input.mjs b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/export-named/input.mjs
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rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/export-named/input.mjs
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/export-named-string/output.js b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/export-named/output.js
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rename from packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/export-named-string/output.js
rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/export-named/output.js
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/imports-named-string-can-be-identifier/input.mjs b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/import-named-string-can-be-identifier/input.mjs
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rename from packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/imports-named-string-can-be-identifier/input.mjs
rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/import-named-string-can-be-identifier/input.mjs
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/imports-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/import-named-string-can-be-identifier/output.js
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rename from packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/imports-named-string-can-be-identifier/output.js
rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/import-named-string-can-be-identifier/output.js
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/imports-named-string/input.mjs b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/import-named/input.mjs
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rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/import-named/input.mjs
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/imports-named-string/output.js b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/import-named/output.js
similarity index 100%
rename from packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-loose/imports-named-string/output.js
rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/import-named/output.js
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/options.json b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/options.json
new file mode 100644
index 000000000000..255ad4b1bdcf
--- /dev/null
+++ b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names-loose/options.json
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    "external-helpers",
+    ["transform-modules-commonjs", { "loose": true }],
+    "syntax-module-string-names"
+  ]
+}
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/export-from-string/input.mjs b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/export-from/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/export-from-string/output.js b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/export-from/output.js
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diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/export-named-string-can-be-identifier/input.mjs b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/export-named-string-can-be-identifier/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/export-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/export-named-string-can-be-identifier/output.js
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rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/export-named-string-can-be-identifier/output.js
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/export-named-string/input.mjs b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/export-named/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/export-named-string/output.js b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/export-named/output.js
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rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/export-named/output.js
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/imports-named-string-can-be-identifier/input.mjs b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/import-named-string-can-be-identifier/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/imports-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/import-named-string-can-be-identifier/output.js
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rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/import-named-string-can-be-identifier/output.js
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/imports-named-string/input.mjs b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/import-named/input.mjs
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rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/import-named/input.mjs
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/imports-named-string/output.js b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/import-named/output.js
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rename from packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop/imports-named-string/output.js
rename to packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/import-named/output.js
diff --git a/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/options.json b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/options.json
new file mode 100644
index 000000000000..392fd3cecc16
--- /dev/null
+++ b/packages/babel-plugin-transform-modules-commonjs/test/fixtures/interop-module-string-names/options.json
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    "external-helpers",
+    "transform-modules-commonjs",
+    "syntax-module-string-names"
+  ]
+}
diff --git a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/systemjs/export-from-string/input.mjs b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/interop-module-string-names/export-from/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/systemjs/export-from-string/output.mjs b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/interop-module-string-names/export-from/output.mjs
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diff --git a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/systemjs/imports-named-string-can-be-identifier/input.mjs b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/interop-module-string-names/import-named-string-can-be-identifier/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/systemjs/imports-named-string-can-be-identifier/output.mjs b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/interop-module-string-names/import-named-string-can-be-identifier/output.mjs
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diff --git a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/systemjs/imports-named-string/input.mjs b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/interop-module-string-names/import-named/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/systemjs/imports-named-string/output.mjs b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/interop-module-string-names/import-named/output.mjs
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rename from packages/babel-plugin-transform-modules-systemjs/test/fixtures/systemjs/imports-named-string/output.mjs
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diff --git a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/interop-module-string-names/options.json b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/interop-module-string-names/options.json
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index 000000000000..e1251d0ca2b0
--- /dev/null
+++ b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/interop-module-string-names/options.json
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    "external-helpers",
+    "transform-modules-systemjs",
+    "syntax-module-string-names"
+  ]
+}
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/loose/export-named-string/output.js b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names-loose/export-named/output.js
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/loose/imports-named-string-can-be-identifier/input.mjs b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names-loose/import-named-string-can-be-identifier/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/loose/imports-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names-loose/import-named-string-can-be-identifier/output.js
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/loose/imports-named-string/output.js b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names-loose/import-named/output.js
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names-loose/options.json b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names-loose/options.json
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index 000000000000..03d2a130053a
--- /dev/null
+++ b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names-loose/options.json
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    "external-helpers",
+    ["transform-modules-umd", { "loose": true }],
+    "syntax-module-string-names"
+  ]
+}
diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/umd/export-from-string/input.mjs b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names/export-from/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/umd/export-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names/export-named-string-can-be-identifier/output.js
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/umd/export-named-string/output.js b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names/export-named/output.js
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/umd/imports-named-string-can-be-identifier/output.js b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names/import-named-string-can-be-identifier/output.js
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/umd/imports-named-string/input.mjs b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names/import-named/input.mjs
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/umd/imports-named-string/output.js b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names/import-named/output.js
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rename from packages/babel-plugin-transform-modules-umd/test/fixtures/umd/imports-named-string/output.js
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diff --git a/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names/options.json b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names/options.json
new file mode 100644
index 000000000000..7d7a0d93ec46
--- /dev/null
+++ b/packages/babel-plugin-transform-modules-umd/test/fixtures/interop-module-string-names/options.json
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    "external-helpers",
+    "transform-modules-umd",
+    "syntax-module-string-names"
+  ]
+}