浏览器加载本地文件而不上传

Question

Is it possible to edit a local file without uploading to the browser?

Let's say the client has an HTML file, I want him to be able to use my site's javascript to edit the file without uploading it. Would this be possible?

Thanks.

Answer 1

Yes, it is possible, but only in HTML5 (and only as browsers add support for it...not all do yet), you can find the HTML5 File API here .

Note that the user has to give permission to access the file, from Section 5.9 :

Once a user has given permission , user agents should provide the ability to read and parse data directly from a local file programmatically.

Answer 2

Nope, that's not possible and shouldn't be either due to security concerns it may pose otherwise.

Note: This feature is there in HTML5 as pointed out by @Nick Craver , you may want to go for but you should be aware of the fact that HTML5 isn't yet supported by all browsers.