diff --git a/src/gleam_stdlib.erl b/src/gleam_stdlib.erl
index 5c93fd4c..3fda5df9 100644
--- a/src/gleam_stdlib.erl
+++ b/src/gleam_stdlib.erl
@@ -5,17 +5,16 @@
     decode_float/1, decode_list/1, decode_option/2, decode_field/2, parse_int/1,
     parse_float/1, less_than/2, string_pop_grapheme/1, string_pop_codeunit/1,
     string_starts_with/2, wrap_list/1, string_ends_with/2, string_pad/4,
-    decode_map/1, uri_parse/1,
-    decode_result/1, bit_array_slice/3, decode_bit_array/1, compile_regex/2,
-    regex_scan/2, percent_encode/1, percent_decode/1, regex_check/2,
-    regex_split/2, base_decode64/1, parse_query/1, bit_array_concat/1,
-    bit_array_base64_encode/2, size_of_tuple/1, decode_tuple/1, decode_tuple2/1,
-    decode_tuple3/1, decode_tuple4/1, decode_tuple5/1, decode_tuple6/1,
-    tuple_get/2, classify_dynamic/1, print/1, println/1, print_error/1,
-    println_error/1, inspect/1, float_to_string/1, int_from_base_string/2,
+    decode_map/1, uri_parse/1, decode_result/1, bit_array_slice/3,
+    decode_bit_array/1, percent_encode/1, percent_decode/1, base_decode64/1,
+    parse_query/1, bit_array_concat/1, bit_array_base64_encode/2,
+    size_of_tuple/1, decode_tuple/1, decode_tuple2/1, decode_tuple3/1,
+    decode_tuple4/1, decode_tuple5/1, decode_tuple6/1, tuple_get/2,
+    classify_dynamic/1, print/1, println/1, print_error/1, println_error/1,
+    inspect/1, float_to_string/1, int_from_base_string/2,
     utf_codepoint_list_to_string/1, contains_string/2, crop_string/2,
-    base16_encode/1, base16_decode/1, string_replace/3, regex_replace/3,
-    slice/3, bit_array_to_int_and_size/1, bit_array_pad_to_bytes/1
+    base16_encode/1, base16_decode/1, string_replace/3, slice/3,
+    bit_array_to_int_and_size/1, bit_array_pad_to_bytes/1
 ]).
 
 %% Taken from OTP's uri_string module
@@ -232,48 +231,6 @@ bit_array_slice(Bin, Pos, Len) ->
     catch error:badarg -> {error, nil}
     end.
 
-compile_regex(String, Options) ->
-    {options, Caseless, Multiline} = Options,
-    OptionsList = [
-        unicode,
-        ucp,
-        Caseless andalso caseless,
-        Multiline andalso multiline
-    ],
-    FilteredOptions = [Option || Option <- OptionsList, Option /= false],
-    case re:compile(String, FilteredOptions) of
-        {ok, MP} -> {ok, MP};
-        {error, {Str, Pos}} ->
-            {error, {compile_error, unicode:characters_to_binary(Str), Pos}}
-    end.
-
-regex_check(Regex, String) ->
-    re:run(String, Regex) /= nomatch.
-
-regex_split(Regex, String) ->
-    re:split(String, Regex).
-
-regex_submatches(_, {-1, 0}) -> none;
-regex_submatches(String, {Start, Length}) ->
-    BinarySlice = binary:part(String, {Start, Length}),
-    case string:is_empty(binary_to_list(BinarySlice)) of
-        true -> none;
-        false -> {some, BinarySlice}
-    end.
-
-regex_matches(String, [{Start, Length} | Submatches]) ->
-    Submatches1 = lists:map(fun(X) -> regex_submatches(String, X) end, Submatches),
-    {match, binary:part(String, Start, Length), Submatches1}.
-
-regex_scan(Regex, String) ->
-    case re:run(String, Regex, [global]) of
-        {match, Captured} -> lists:map(fun(X) -> regex_matches(String, X) end, Captured);
-        nomatch -> []
-    end.
-
-regex_replace(Regex, Subject, Replacement) ->
-    re:replace(Subject, Regex, Replacement, [global, {return, binary}]).
-
 base_decode64(S) ->
     try {ok, base64:decode(S)}
     catch error:_ -> {error, nil}
diff --git a/src/gleam_stdlib.mjs b/src/gleam_stdlib.mjs
index 339963b0..e7088b46 100644
--- a/src/gleam_stdlib.mjs
+++ b/src/gleam_stdlib.mjs
@@ -10,10 +10,6 @@ import {
   NonEmpty,
   CustomType,
 } from "./gleam.mjs";
-import {
-  CompileError as RegexCompileError,
-  Match as RegexMatch,
-} from "./gleam/regex.mjs";
 import { DecodeError } from "./gleam/dynamic.mjs";
 import { Some, None } from "./gleam/option.mjs";
 import { Eq, Gt, Lt } from "./gleam/order.mjs";
@@ -448,51 +444,6 @@ export function utf_codepoint_to_int(utf_codepoint) {
   return utf_codepoint.value;
 }
 
-export function regex_check(regex, string) {
-  regex.lastIndex = 0;
-  return regex.test(string);
-}
-
-export function compile_regex(pattern, options) {
-  try {
-    let flags = "gu";
-    if (options.case_insensitive) flags += "i";
-    if (options.multi_line) flags += "m";
-    return new Ok(new RegExp(pattern, flags));
-  } catch (error) {
-    const number = (error.columnNumber || 0) | 0;
-    return new Error(new RegexCompileError(error.message, number));
-  }
-}
-
-export function regex_split(regex, string) {
-  return List.fromArray(
-    string.split(regex).map((item) => (item === undefined ? "" : item)),
-  );
-}
-
-export function regex_scan(regex, string) {
-  const matches = Array.from(string.matchAll(regex)).map((match) => {
-    const content = match[0];
-    const submatches = [];
-    for (let n = match.length - 1; n > 0; n--) {
-      if (match[n]) {
-        submatches[n - 1] = new Some(match[n]);
-        continue;
-      }
-      if (submatches.length > 0) {
-        submatches[n - 1] = new None();
-      }
-    }
-    return new RegexMatch(content, List.fromArray(submatches));
-  });
-  return List.fromArray(matches);
-}
-
-export function regex_replace(regex, original_string, replacement) {
-  return original_string.replaceAll(regex, replacement);
-}
-
 export function new_map() {
   return Dict.new();
 }