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Free Image CDN for Your Blog: Serving Images from Cloudflare R2's 10GB Free Tier

Free Image CDN for Your Blog: Serving Images from Cloudflare R2's 10GB Free Tier

One-line pitch: Move your blog or landing-page images to Cloudflare R2 object storage — 10GB of storage, 1 million writes and 10 million reads free every month, and visitors viewing your images (egress traffic) costs you nothing, so a viral post will never blow up your bill.

Prerequisites

  • A Cloudflare account (free, email signup)
  • A payment method (credit card or PayPal): R2 requires one at activation. Nothing is charged within the free tier, but if you'd rather not attach a card, know this up front
  • (Optional) Your own domain: only needed if you want a tidy image URL like img.yourdomain.com; without one you can still get started with R2's built-in r2.dev test address

Step by step

Step 1: Activate the R2 subscription

Log in to the Cloudflare dashboard, go to R2 Object Storage (Storage & Objects → R2 Object Storage), and complete the subscription checkout with your payment method. This is a mandatory activation step — you are not charged anything while you stay inside the free tier.

R2 official pricing page with free tier details

Step 2: Create a bucket

Go to R2 → Buckets → Create bucket, pick a lowercase name like blog-images (lowercase letters, numbers, and hyphens only), and leave the location as Automatic. Done — the bucket starts out private.

R2 official docs overview, Get started entry point

Step 3: Upload your images

Click Upload in the bucket for a quick web upload. If you have lots of images, use an S3-compatible tool instead:

  • rclone and Cyberduck both work with R2 — set the endpoint to https://<your-account-id>.r2.cloudflarestorage.com
  • For API credentials: on the R2 overview page, open Account Details → Manage and Create User API Token. Give it Object Read & Write permission, scope it to this bucket only, and set TTL to Forever. Never use a full Admin token for this — if it leaks, the damage is much bigger

Thrifty tip: phone photos are several MB each — compress before uploading. Converting to WebP typically saves 30–50%, so the 10GB free tier holds tens of thousands of blog images.

Step 4: Turn on public access and get image URLs

New buckets are private. Open the bucket → Settings → Public Development URL → Enable, type allow in the confirmation box, and R2 gives you a *.r2.dev public domain — your images are instantly reachable at https://pub-xxx.r2.dev/filename.

Important caveat: r2.dev is officially for development and testing only. It gets rate-limited under real traffic (HTTP 429) and bandwidth is throttled. For a production blog or landing page, use a custom domain: in the same settings page, Custom Domains → Connect Domain, attach img.yourdomain.com — DNS records are added automatically and it goes live within minutes. Image URLs become https://img.yourdomain.com/filename, with free HTTPS and Cloudflare's global cache in front.

R2 public buckets and custom domain official docs

Step 5: Wire it into your site

  • WordPress: install an S3-compatible media plugin (S3 Uploads, Media Cloud, or Offload Media Lite), set the endpoint to your R2 endpoint, paste the token from Step 3 — uploaded images sync to R2 and come back with your custom-domain URLs
  • Static blogs / hand-coded landing pages: just reference https://img.yourdomain.com/xxx.webp directly, like any image URL
  • Migrating an existing site: bulk-upload your old images to R2, then find-and-replace the old image URLs with the new domain

2026 free image hosting comparison (R2 vs B2 vs Oracle)

Costs, gotchas, and things to watch

Pricing (verified on the official pricing page, October 2026):

  • Free tier resets monthly: 10GB storage + 1 million Class A operations (writes/uploads/lists) + 10 million Class B operations (reads/downloads), egress $0
  • Overages: storage $0.015/GB-month, Class A $4.50/million, Class B $0.36/million, egress still $0. A personal blog will rarely hit these
  • The free tier covers only the Standard storage class. The Infrequent Access class (added 2025, $0.01/GB-month) charges a $0.01/GB retrieval fee — don't pick it for image hosting

Gotchas:

  1. Activation requires a card (credit card or PayPal). Non-negotiable, even though nothing is charged inside the free tier
  2. Don't use r2.dev in production: officially rate-limited (429s kick in at a few hundred requests/second) with throttled bandwidth. Production use needs a custom domain
  3. Cached-404 trap: Cloudflare caches 404s. If someone hits an image URL before you upload it, the 404 can keep being served after the upload. Fix: use a new filename (versioned paths), or purge the cache manually
  4. Access speed from mainland China is mediocre: R2 has no PoPs there. Custom domains route through Cloudflare's edge cache, so overseas visitors get great performance; if your business is mainly China-based, consider a different image setup
  5. Don't use GitHub repos or Telegram bots as image hosts: that violates their terms of service, and if the account goes, every image in your articles breaks. A big-vendor, officially documented free tier like R2's is the stable choice

Track record: R2's 10GB / 1M / 10M free tier has never been reduced since launch (still the number on the official pricing page in October 2026) — no quiet price hikes. On stability: on 2025-02-06 the R2 gateway was briefly disabled by mistake during an abuse response, with about an hour of disruption (per Cloudflare's official post-mortem) — an operational accident, not a policy change. Occasional community posts about R2 suspensions trace back to billing or fraud issues, not normal personal image-hosting use.

Sources