Comments
>log in to commentI built FormatFlash to give anyone a fast, privacy‑first way to convert images—HEIC, JPG, PNG, WebP and more—directly in the browser. It runs 100% client‑side, so no uploads, no sign‑up, and it's free forever. Let me know what you think!
More Image tools →74 free dev tools →
FormatFlash is a free browser-based image converter that processes HEIC, JPG, PNG, WebP, GIF, BMP and AVIF locally without uploading files.
- for
- Developers and users who need quick, private image format conversion in the browser.
- pricing
- free
Key features
- 100% Local Processing — All conversions run in the browser, so files never leave the user’s device.
- Multiple Formats Supported — Convert between HEIC, HEIF, JPG, PNG, WebP, GIF, BMP, AVIF and more.
- Batch Conversion — Upload up to 50 files (max 50 MB each) and convert them together.
- Quality & Resize Controls — Adjust output quality, resize dimensions, and set background for JPGs.
- Metadata Removal — EXIF and GPS data are stripped automatically for privacy.
- Instant Download & ZIP Export — Download each file instantly or export all results as a ZIP archive.
Use cases
- Convert iPhone HEIC photos to JPG for web use
- Batch resize and compress images before uploading to a site
- Create WebP versions of assets for faster page loads
FormatFlash vs alternatives
 FormatFlash |  Cloudinary |  Thumbor |  Photopea | |
|---|---|---|---|---|
| Best for | Client-side image conversion without uploads | Server-side image processing and CDN delivery | Self-hosted image resizing and smart cropping | In-browser image editing with layers |
| Pricing | Free | Subscription | Free | Free |
| DevHunt upvotes | 1 | 0 | 0 | 0 |
| Launched | Jun 2030 | — | — | — |
- FormatFlash vs Cloudinary: Cloudinary provides a cloud API for image upload, transformation and delivery, not client-side only.
- FormatFlash vs Thumbor: Thumbor is an open-source image service that runs on a server and offers smart cropping, unlike local browser conversion.
- FormatFlash vs Photopea: Photopea is a full-featured online Photoshop-like editor, whereas FormatFlash only converts formats.
FormatFlash FAQ
Do my images get uploaded to a server?+
No, all processing happens locally in your browser; files never leave your device.
Is there a limit on file size or number?+
You can convert up to 50 files at a time, each up to 50 MB.
Will metadata be kept in the converted images?+
Metadata such as EXIF and GPS is always removed during conversion.
Is registration required?+
No signup or account is needed to use FormatFlash.
Summarized by DevHunt from formatflash.com · Oct 19, 2026. Details may change; check the official site.
