- Front controller and UI in [public/index.php](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/public/index.php) and [views/dashboard.php](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/views/dashboard.php)

R2 S3 Signature V4 client in 
[src/R2/R2Client.php](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/src/R2/R2Client.php)
SQLite mirror, usage ledger, settings, local tags, permission labels, 
and signed URL history under 
[src/Repository](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/src/Repository)
Simple password auth and CSRF protection
Uploads, folders, sync, copy/move/delete, downloads, presigned URLs, 
CORS JSON management, and usage/billing-style summaries
Setup docs in 
[README.md](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/README.md) 
and config template in 
[.env.example](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/.env.example)
Important R2 caveat: Cloudflare’s current R2 S3 compatibility docs say 
ACLs and object-tagging APIs are not implemented, so the app stores tags 
and permission labels locally in SQLite while keeping file bytes on R2. 
I used Cloudflare’s official docs for S3 compatibility, presigned URLs, 
and CORS.

src/Support/Formatter.php

@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+namespace R2Manager\Support;
+
+final class Formatter
+{
+    public static function bytes(int|float $bytes): string
+    {
+        $units = ['B', 'KB', 'MB', 'GB', 'TB', 'PB'];
+        $value = max(0, (float) $bytes);
+        $unit = 0;
+
+        while ($value >= 1024 && $unit < count($units) - 1) {
+            $value /= 1024;
+            $unit++;
+        }
+
+        return ($unit === 0 ? number_format($value, 0) : number_format($value, 2)) . ' ' . $units[$unit];
+    }
+
+    public static function date(?string $value): string
+    {
+        if ($value === null || $value === '') {
+            return 'Never';
+        }
+
+        $timestamp = strtotime($value);
+        if ($timestamp === false) {
+            return $value;
+        }
+
+        return date('M j, Y g:i A', $timestamp);
+    }
+
+    /**
+     * @param array<string, string> $tags
+     */
+    public static function tagString(array $tags): string
+    {
+        $parts = [];
+        foreach ($tags as $key => $value) {
+            $parts[] = $key . '=' . $value;
+        }
+
+        return implode(', ', $parts);
+    }
+}
+