diff --git a/packages/bruno-cli/package.json b/packages/bruno-cli/package.json
index f62f9dc64..22bc16602 100644
--- a/packages/bruno-cli/package.json
+++ b/packages/bruno-cli/package.json
@@ -37,7 +37,6 @@
     "fs-extra": "^10.1.0",
     "http-proxy-agent": "^7.0.0",
     "https-proxy-agent": "^7.0.2",
-    "json-bigint": "^1.0.0",
     "lodash": "^4.17.21",
     "qs": "^6.11.0",
     "socks-proxy-agent": "^8.0.2",
diff --git a/packages/bruno-cli/src/runner/prepare-request.js b/packages/bruno-cli/src/runner/prepare-request.js
index de0dbd143..2e312878e 100644
--- a/packages/bruno-cli/src/runner/prepare-request.js
+++ b/packages/bruno-cli/src/runner/prepare-request.js
@@ -1,5 +1,5 @@
+const { get, each, filter, find, compact } = require('lodash');
 const { get, each, filter } = require('lodash');
-var JSONbig = require('json-bigint');
 const decomment = require('decomment');
 const crypto = require('node:crypto');
 const { mergeHeaders, mergeScripts, mergeVars, getTreePathFromCollectionToItem } = require('../utils/collection');
@@ -31,7 +31,8 @@ const prepareRequest = (item = {}, collection = {}) => {
     method: request.method,
     url: request.url,
     headers: headers,
-    pathParams: request?.params?.filter((param) => param.type === 'path')
+    pathParams: request?.params?.filter((param) => param.type === 'path'),
+    responseType: 'arraybuffer'
   };
 
   const collectionAuth = get(collection, 'root.request.auth');
@@ -96,16 +97,10 @@ const prepareRequest = (item = {}, collection = {}) => {
     if (!contentTypeDefined) {
       axiosRequest.headers['content-type'] = 'application/json';
     }
-    let jsonBody;
     try {
-      jsonBody = decomment(request?.body?.json);
+      axiosRequest.data = decomment(request?.body?.json);
     } catch (error) {
-      jsonBody = request?.body?.json;
-    }
-    try {
-      axiosRequest.data = JSONbig.parse(jsonBody);
-    } catch (error) {
-      axiosRequest.data = jsonBody;
+      axiosRequest.data = request?.body?.json;
     }
   }
 
diff --git a/packages/bruno-cli/src/runner/run-single-request.js b/packages/bruno-cli/src/runner/run-single-request.js
index 35cafb590..dd9d450f0 100644
--- a/packages/bruno-cli/src/runner/run-single-request.js
+++ b/packages/bruno-cli/src/runner/run-single-request.js
@@ -19,7 +19,7 @@ const { makeAxiosInstance } = require('../utils/axios-instance');
 const { addAwsV4Interceptor, resolveAwsV4Credentials } = require('./awsv4auth-helper');
 const { shouldUseProxy, PatchedHttpsProxyAgent } = require('../utils/proxy-util');
 const path = require('path');
-const { createFormData } = require('../utils/common');
+const { createFormData, parseDataFromResponse } = require('../utils/common');
 const { getCookieStringForUrl, saveCookies, shouldUseCookies } = require('../utils/cookies');
 const protocolRegex = /^([-+\w]{1,25})(:?\/\/|:)/;
 
@@ -227,6 +227,9 @@ const runSingleRequest = async function (
       /** @type {import('axios').AxiosResponse} */
       response = await axiosInstance(request);
 
+      const { data } = parseDataFromResponse(response, request.__brunoDisableParsingResponseJson);
+      response.data = data;
+
       // Prevents the duration on leaking to the actual result
       responseTime = response.headers.get('request-duration');
       response.headers.delete('request-duration');
@@ -237,6 +240,8 @@ const runSingleRequest = async function (
       }
     } catch (err) {
       if (err?.response) {
+        const { data } = parseDataFromResponse(err?.response);
+        err.response.data = data;
         response = err.response;
 
         // Prevents the duration on leaking to the actual result
diff --git a/packages/bruno-cli/src/utils/common.js b/packages/bruno-cli/src/utils/common.js
index 16c2d1a7b..dd45be501 100644
--- a/packages/bruno-cli/src/utils/common.js
+++ b/packages/bruno-cli/src/utils/common.js
@@ -2,6 +2,7 @@ const fs = require('fs');
 const FormData = require('form-data');
 const { forOwn } = require('lodash');
 const path = require('path');
+const iconv = require('iconv-lite');
 
 const lpad = (str, width) => {
   let paddedStr = str;
@@ -43,9 +44,35 @@ const createFormData = (datas, collectionPath) => {
   return form;
 };
 
+const parseDataFromResponse = (response, disableParsingResponseJson = false) => {
+  // Parse the charset from content type: https://stackoverflow.com/a/33192813
+  const charsetMatch = /charset=([^()<>@,;:"/[\]?.=\s]*)/i.exec(response.headers['content-type'] || '');
+  // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec#using_exec_with_regexp_literals
+  const charsetValue = charsetMatch?.[1];
+  const dataBuffer = Buffer.from(response.data);
+  // Overwrite the original data for backwards compatibility
+  let data;
+  if (iconv.encodingExists(charsetValue)) {
+    data = iconv.decode(dataBuffer, charsetValue);
+  } else {
+    data = iconv.decode(dataBuffer, 'utf-8');
+  }
+  // Try to parse response to JSON, this can quietly fail
+  try {
+    // Filter out ZWNBSP character
+    // https://gist.github.com/antic183/619f42b559b78028d1fe9e7ae8a1352d
+    data = data.replace(/^\uFEFF/, '');
+    if (!disableParsingResponseJson) {
+      data = JSON.parse(data);
+    }
+  } catch { }
+
+  return { data, dataBuffer };
+};
 
 module.exports = {
   lpad,
   rpad,
-  createFormData
+  createFormData,
+  parseDataFromResponse
 };
diff --git a/packages/bruno-cli/tests/runner/prepare-request.spec.js b/packages/bruno-cli/tests/runner/prepare-request.spec.js
index 8d8738af6..37d3e34d3 100644
--- a/packages/bruno-cli/tests/runner/prepare-request.spec.js
+++ b/packages/bruno-cli/tests/runner/prepare-request.spec.js
@@ -6,14 +6,18 @@ describe('prepare-request: prepareRequest', () => {
   describe('Decomments request body', () => {
     it('If request body is valid JSON', async () => {
       const body = { mode: 'json', json: '{\n"test": "{{someVar}}" // comment\n}' };
-      const expected = { test: '{{someVar}}' };
+      const expected = `{
+\"test\": \"{{someVar}}\" 
+}`;
       const result = prepareRequest({ request: { body } });
       expect(result.data).toEqual(expected);
     });
 
     it('If request body is not valid JSON', async () => {
       const body = { mode: 'json', json: '{\n"test": {{someVar}} // comment\n}' };
-      const expected = '{\n"test": {{someVar}} \n}';
+      const expected = `{
+\"test\": {{someVar}} 
+}`;
       const result = prepareRequest({ request: { body } });
       expect(result.data).toEqual(expected);
     });
diff --git a/packages/bruno-tests/collection/echo/echo bigint.bru b/packages/bruno-tests/collection/echo/echo bigint.bru
deleted file mode 100644
index ef981c723..000000000
--- a/packages/bruno-tests/collection/echo/echo bigint.bru	
+++ /dev/null
@@ -1,42 +0,0 @@
-meta {
-  name: echo bigint
-  type: http
-  seq: 6
-}
-
-post {
-  url: {{host}}/api/echo/json
-  body: json
-  auth: none
-}
-
-headers {
-  foo: bar
-}
-
-auth:basic {
-  username: asd
-  password: j
-}
-
-auth:bearer {
-  token: 
-}
-
-body:json {
-  {
-    "hello": 990531470713421825,
-    "decimal": 1.0,
-    "decimal2": 1.00,
-    "decimal3": 1.00200,
-    "decimal4": 0.00
-  }
-}
-
-assert {
-  res.status: eq 200
-}
-
-tests {
-  // todo: add tests once lossless json echo server is ready
-}
diff --git a/packages/bruno-tests/collection/echo/echo numbers.bru b/packages/bruno-tests/collection/echo/echo numbers.bru
new file mode 100644
index 000000000..8f68fe558
--- /dev/null
+++ b/packages/bruno-tests/collection/echo/echo numbers.bru	
@@ -0,0 +1,44 @@
+meta {
+  name: echo numbers
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{echo-host}}
+  body: json
+  auth: none
+}
+
+body:json {
+  {
+    "integer": 123,
+    "negativeInteger": -99,
+    "zero": 0,
+    "float": 2.718,
+    "negativeFloat": -1.618,
+    "largeDouble": 12345.678901234567,
+    "smallDouble": 9.876e-12,
+    "booleanTrue": true,
+    "booleanFalse": false
+  }
+}
+
+assert {
+  res.body.integer: eq 123
+  res.body.integer: isNumber
+  res.body.negativeInteger: eq -99
+  res.body.negativeInteger: isNumber
+  res.body.zero: eq 0
+  res.body.zero: isNumber
+  res.body.float: eq 2.718
+  res.body.float: isNumber
+  res.body.negativeFloat: eq -1.618
+  res.body.negativeFloat: isNumber
+  res.body.largeDouble: eq 12345.678901234567
+  res.body.largeDouble: isNumber
+  res.body.smallDouble: eq 9.876e-12
+  res.body.smallDouble: isNumber
+  res.body.booleanTrue: eq true
+  res.body.booleanFalse: eq false
+}