I wasted a lot of time to find out what is wrong. I need your help now. I want to render template with image from my filesystem. But it is not working. Path - string that contains file name @app.route('/', methods=['GET']) def main(): return render_template('main.html',image = path) <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>test</title> </head> <body> <h2></h2> <form method="post" enctype="multipart/form-data" action="/uploader"> <input type="file" name="file"> <button type="submit">Upload</button> </form> <img src={{ url_for('static', filename = image) }} >//i can't figure how to change this to use {{image}} </body> </html> Continue reading...