Find and replace text across multiple Illustrator files

here you go, I added a prompt to enter search/replace strings. You're correct, if you have a lot of text, Illustrator will freeze but it's still working on the background. Just wait for the scrip to finish. I'll add a progress bar when I have more free time.

// findReplace v4.jsx
// carlos canto
// https://forums.adobe.com/thread/2484457

function main () {
    var idoc, search_string, replace_string, tframes, i, tframe, new_string, counter=0;
    
    search_string = Window.prompt ('Enter Search string', 'search string', 'Find/Replace Across All Open Documents');
    
    if (search_string == null) {
        alert ('Cancelled by user');
        return;
    }

    replace_string = Window.prompt ('Enter Replace string', 'replace string', 'Find/Replace Across All Open Documents');
    
    if (replace_string == null) {
        alert ('Cancelled by user');
        return;
    }

    for (var a=0; a<app.documents.length; a++) {
        idoc = app.documents[a];
         
        tframes = idoc.textFrames;
         
        for (i = 0 ; i < tframes.length; i++) {
            tframe = tframes[i];
            new_string = tframe.contents.replace(new RegExp(search_string, 'g'), replace_string);
            
            if (new_string != tframe.contents) {
                tframe.contents = new_string;
                counter++;
            }
        }
    }
    alert(counter + ' changes were made');
}

main();

Hi Carlos!
The Scipt could be really useful for me.

Might it be possible to have something like a search & replace dialog instead of the necesitty to change the code?

This would be fantastic!

While doing a search & replace on documents with a large amount of text boxes it seems like illustrator crashes but mostly it doesn't - it's only not responding. I guess thats because the script needs to go through all text boxes in all open documents.

So something like a progress bar would also be very useful.

In older versions of Illustrator that used to work with Batch processing action(s), but I can remember that some users claimed that it doesn't work anymore or not as expected.

Which version of Illustrator are you using? What are you trying to find and replace? Just one single word or various instances of single words? Or something else?