# app.py (Backend - Flask)
from flask import Flask, render_template, request, send_file
from PIL import Image
import os
import uuid
app = Flask(__name__)
app.config['UPLOAD_FOLDER'] = 'uploads'
app.config['CONVERTED_FOLDER'] = 'converted'
app.config['ALLOWED_EXTENSIONS'] = {'png', 'jpg', 'jpeg', 'webp', 'gif', 'bmp'}
def allowed_file(filename):
return '.' in filename and \
filename.rsplit('.', 1)[1].lower() in app.config['ALLOWED_EXTENSIONS']
def convert_image(filepath, output_format):
img = Image.open(filepath)
converted_filename = f"{uuid.uuid4()}.{output_format}"
output_path = os.path.join(app.config['CONVERTED_FOLDER'], converted_filename)
img.save(output_path, output_format.upper())
return output_path
@app.route('/')
def index():
return render_template('index.html')
@app.route('/convert', methods=['POST'])
def convert():
if 'file' not in request.files:
return {'error': 'No file uploaded'}, 400
file = request.files['file']
output_format = request.form.get('format', 'png').lower()
if file.filename == '':
return {'error': 'No selected file'}, 400
if not allowed_file(file.filename):
return {'error': 'Invalid file type'}, 400
if file and allowed_file(file.filename):
filename = f"{uuid.uuid4()}.{file.filename.rsplit('.', 1)[1].lower()}"
filepath = os.path.join(app.config['UPLOAD_FOLDER'], filename)
file.save(filepath)
try:
converted_path = convert_image(filepath, output_format)
return send_file(converted_path, as_attachment=True)
except Exception as e:
return {'error': str(e)}, 500
finally:
# Clean up temporary files
if os.path.exists(filepath):
os.remove(filepath)
if os.path.exists(converted_path):
os.remove(converted_path)
return {'error': 'Conversion failed'}, 500
if __name__ == '__main__':
os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
os.makedirs(app.config['CONVERTED_FOLDER'], exist_ok=True)
app.run(debug=True)
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