Account / Password Text Tool

One record per line, in the form account----password. Import a text file (large files, e.g. about 500 MB, are processed in chunks in your browser — the file is never pasted into a text box and never uploaded to a server), then download the processed file. Example: 939944112@qq.com----dasdkjw0416 becomes 939944112@qq.com----dasdkjw416.