RAW Photo Conversion Guide: CR2, CR3, DNG & More Without Photoshop

Learn how to convert CR2, CR3, DNG, NEF, and ARW RAW photo files to JPEG, PNG, or WebP without Photoshop or Lightroom. Practical guide covering every major RAW format, quality considerations, and browser-based conversion.

Published February 22, 2026 · Updated February 22, 2026

You bought a new camera, took two hundred gorgeous photos on vacation, came home, plugged in the SD card, and... your computer shows a bunch of files ending in .CR2 or .NEF that nothing seems to want to open. Or maybe Windows shows a tiny preview but you can't send them to anyone because each file is 25 MB and Gmail just laughs at your attachment.

Welcome to the world of RAW photography. It's actually a good place to be — it means your camera was capturing the highest quality images it's capable of. But if nobody told you what RAW files are or how to work with them, the experience is genuinely frustrating.

This guide covers everything you need to know: what RAW files actually contain, which format goes with which camera brand, how to convert them to standard formats like JPEG and PNG, and how to do all of it without paying for Photoshop or Lightroom.

What RAW Files Actually Contain

Here's the key thing to understand: a RAW file is not an image. It's a recording of what every single pixel on your camera's sensor saw at the moment you pressed the shutter button.

When your camera shoots JPEG, it takes that sensor data and immediately processes it — applying white balance, sharpening, noise reduction, contrast curves, color saturation adjustments, and then compressing the result into an 8-bit JPEG. The camera's internal computer makes dozens of decisions about how your photo should look, bakes those decisions permanently into the file, and throws away the original sensor data.

A RAW file skips all of that. It saves the raw (hence the name) sensor readings, typically at 12-bit or 14-bit depth, alongside metadata about the camera settings you used. Think of it as a digital negative — the undeveloped film from a darkroom era. It contains all the information needed to produce a finished image, but it isn't one yet.

This matters for two practical reasons:

Editing flexibility. Because RAW preserves the full dynamic range of the sensor, you can recover detail from areas that look completely white or black. Overexposed a sky by two stops? In JPEG, those blown-out highlights are gone forever — the pixel data was literally discarded during compression. In RAW, you can often pull that detail back because the sensor actually recorded it. Same goes for shadows: pulling up a dark shadow in JPEG introduces ugly noise and banding, while RAW handles it much more gracefully.

White balance is not permanent. In JPEG, the white balance your camera chose (or you set) is applied destructively — the color data is permanently shifted. In RAW, white balance is just a metadata tag. You can change it after the fact with zero quality loss, as if you'd set a different white balance on the camera itself.

The tradeoff is straightforward: RAW files are large (typically 20-50 MB per image depending on your camera's resolution), they require conversion before sharing, and they need software that understands your specific camera's RAW format.

The RAW Format Landscape

Here's where things get messy. Unlike JPEG, which is a single universal standard, nearly every camera manufacturer invented their own proprietary RAW format. Your Canon files won't have the same internal structure as your friend's Nikon files, even though both are conceptually "RAW."

The DNG Exception

Adobe's DNG (Digital Negative) deserves special mention because it's the only RAW format designed to be universal. Adobe published the specification openly, and it's intended as a long-term archival format that doesn't depend on any single camera manufacturer's software continuing to exist.

Some cameras shoot DNG natively — Leica M and Q series, Hasselblad X and 907x, Google Pixel phones, and some DJI drones. Pentax cameras can save either PEF or DNG in-camera. For everyone else, you can convert your proprietary RAW files to DNG using Adobe's free DNG Converter tool for archival purposes.

The practical advantage: DNG files will almost certainly be readable decades from now. Whether anyone will be able to open a .cr2 file from a Canon 5D Mark II in the year 2050 is a legitimate question — the camera was discontinued in 2012, and Canon has no obligation to maintain support for its format indefinitely.

Which Format Does Your Camera Use?

If you're not sure which RAW format your camera produces, the simplest approach is to look at the file extension on your memory card. But here are the shortcuts:

• Canon → CR2 (pre-2018 models) or CR3 (EOS R system and newer)
• Nikon → NEF
• Sony → ARW
• Fujifilm → RAF
• Olympus / OM System → ORF
• Panasonic / Lumix → RW2
• Pentax → PEF or DNG
• Phone cameras (Google Pixel, Samsung Pro mode, iPhone ProRAW) → DNG

RAW vs JPEG: The Actual Differences

You'll find plenty of vague advice online about RAW being "better quality" than JPEG. Let's be specific about what that means in practice, because the answer is more nuanced than most guides let on.

When RAW's Advantages Actually Matter

The dynamic range advantage is not theoretical — it shows up constantly in real shooting. A high-contrast scene like a person standing in front of a bright window will blow out the background in JPEG, and there's nothing you can do about it in post. In RAW, you can pull down the highlights by 2-3 stops and suddenly there's a visible sky outside the window, with detail in the clouds, while your subject stays properly exposed.

The color depth advantage is more subtle. The difference between 256 tones per channel (JPEG) and 4,096+ tones per channel (RAW) shows up when you make aggressive adjustments to tone curves, color grading, or when you're printing large. Smooth gradients — like a sunset sky transitioning from orange to deep blue — will show visible banding in heavily edited JPEGs but remain smooth in RAW.

When JPEG Is Honestly Fine

Not every photo needs the RAW treatment. Event photographers shooting a corporate conference and delivering 500 final images often shoot JPEG because the lighting is consistent, the white balance doesn't change, and the photos need minimal editing. Sports photographers shooting 15 frames per second fill their buffer much faster with RAW files — the camera's write speed becomes a bottleneck.

If you're taking snapshots at a family dinner and plan to share them directly to a group chat with no editing, shooting JPEG saves you a conversion step and produces perfectly good results. The camera's built-in processing is genuinely excellent on modern bodies.

Converting RAW to Standard Formats

Whether you're converting a single portrait or batch-processing an entire wedding shoot, the workflow is the same: open the RAW file, decide on your output format, set a quality level, and export.

Choosing Your Output Format

The output format matters more than people realize. Here's the decision framework:

JPEG (.jpg) — Use this for sharing photos on social media, sending via email, uploading to websites, or printing through consumer photo services. JPEG at quality 90-95 is visually indistinguishable from the original for photographs. At quality 80-85, file sizes drop significantly with minimal visible impact. This is the right choice for 90% of RAW conversions.

PNG (.png) — Use this when you need lossless output (no compression artifacts at all) or transparency. PNG files are significantly larger than JPEG — often 3-5x — so they're not practical for bulk sharing. But for a portfolio piece you want to preserve at maximum quality without any generation loss, PNG is the format that guarantees nothing is thrown away during conversion.

WebP (.webp) — Use this for web publishing where you control the output. WebP produces files 25-35% smaller than JPEG at equivalent visual quality, and it supports both lossy and lossless compression. Browser support is now universal. The only downside: some older image editing tools and print services still don't accept WebP, so it's best suited for online use rather than archival or printing.

Quality Settings That Actually Make Sense

For JPEG output, the quality parameter (usually a number from 1-100) is the most important decision:

• Quality 95-100: Virtually indistinguishable from lossless. File sizes approach PNG territory. Overkill for sharing, but reasonable for a "final master" you'll derive other versions from.
• Quality 85-92: The sweet spot for most purposes. Excellent visual quality with significantly reduced file size. A 25 MB RAW file might produce a 4-6 MB JPEG at quality 90.
• Quality 75-84: Still good for web use and social media, where the image will likely be recompressed by the platform anyway. File sizes are compact.
• Quality below 75: Visible artifacts start appearing, especially around high-contrast edges and in areas of subtle texture. Avoid unless file size is a hard constraint.

For WebP output, the quality scale works similarly, but WebP at quality 80 looks roughly equivalent to JPEG at quality 85-90 — it's simply a more efficient codec.

Step-by-Step Conversion

The basic process is straightforward regardless of which tool you use:

1. Select your RAW file(s) — most tools support drag-and-drop or a file picker.
2. Choose your output format — JPEG for sharing, PNG for lossless, WebP for web.
3. Set quality — 85-92 for JPEG is the sweet spot for most uses.
4. Convert — the tool reads the RAW sensor data, applies a basic demosaic (interpreting the Bayer filter pattern into full RGB pixels), performs standard tone mapping, and encodes the result in your chosen format.
5. Download — your converted file is ready to share, print, or upload.

If you need to do any creative editing (adjusting exposure, color grading, cropping for a specific aspect ratio), do that before the final export. Once you've converted to JPEG, your editing headroom shrinks dramatically.

When to Convert vs. When to Keep RAW

This is genuinely one of the most practical questions in digital photography workflow, and the answer depends on what stage of the process you're at.

Always Keep Your Original RAW Files

Let's start with the non-negotiable: never delete your RAW files after converting. Storage is cheap. A 2 TB external hard drive costs less than a single lens cap, and it can hold roughly 50,000 RAW files. Your original RAW files are your digital negatives — they contain information that cannot be recreated once discarded.

Even if you never plan to re-edit a photo, keep the RAW. Your future self may want to revisit images with better editing skills, newer software, or different creative intent. Photos you thought were mediocre five years ago sometimes become your favorites after you learn more about editing.

The RAW+JPEG Workflow

Most modern cameras offer a RAW+JPEG shooting mode that saves both formats simultaneously. This is genuinely useful for several workflows:

• Immediate sharing with future editing potential. The JPEG goes straight to your phone via Wi-Fi for quick Instagram posting. The RAW stays on the card for when you sit down to do proper editing later.
• Quick culling. JPEGs are much faster to browse through when selecting keepers from a large shoot. Use the small JPEGs to pick your favorites, then edit only the RAW files of the images you actually want to keep.
• Client previews. If you're shooting for a client, the JPEGs work as quick proofs. The RAWs are for the final deliverables after you know which images the client selected.

The cost is storage — RAW+JPEG roughly doubles the space consumed on your memory card. On a 128 GB card shooting with a 45 MP camera, that's the difference between 2,500 images and 1,200. Worth it for important shoots; unnecessary for casual snapshots.

When to Convert for Good

There are legitimate reasons to produce JPEG or PNG versions as your final deliverables:

• Sharing on social media — platforms recompress everything anyway, so RAW is pointless here.
• Emailing photos to family — nobody wants to receive a 35 MB .arw file they can't open.
• Uploading to a website or blog — WebP or JPEG at web-appropriate sizes.
• Printing — consumer print services want JPEG. Professional services may accept TIFF.
• Archiving finished, edited work — once you've done your final edit in Lightroom or similar and you're happy with the result, a high-quality JPEG (95+) or PNG of the finished version is useful alongside the original RAW.

Browser-Based RAW Conversion

Traditional RAW converters — Lightroom, Capture One, RawTherapee, darktable — are powerful, but they come with baggage. Some require subscriptions. All require installation. Most have a learning curve that feels disproportionate when all you want to do is convert twenty vacation photos to JPEG so you can text them to your family.

Browser-based conversion offers a different tradeoff: you sacrifice advanced editing controls for simplicity and accessibility.

How Fileza Handles RAW Files

Fileza processes RAW files entirely within your browser. When you drop a .cr2, .nef, .arw, or .dng file onto the converter, the file never leaves your computer. There's no upload to a server, no cloud processing, no "we'll email you when it's done." The conversion happens locally using your browser's computing power.

This matters for a few reasons:

Privacy. Your personal photos stay on your machine. Period. No third party sees your images, stores them temporarily on a server, or potentially uses them for training data. If you're converting personal or sensitive photos — family moments, documents, anything you wouldn't post publicly — this is a meaningful advantage over cloud-based converters.

Speed. Since there's no upload step, conversion starts immediately. You're not waiting for a 30 MB RAW file to crawl up your internet connection before processing even begins. On a modern computer, the actual conversion is fast — a single RAW file typically converts in a few seconds.

No software installation. Open the page, drop your files, download the results. Works on any computer with a modern browser — your work laptop, your partner's Chromebook, a library computer. Nothing to install, nothing to update, nothing that asks for admin privileges.

Batch processing. Drop multiple RAW files at once and convert them all in a single operation. This is particularly useful for that vacation scenario — you've got 200 photos from a trip and you just want JPEGs so you can share an album.

What You Don't Get

Transparency is important here. A browser-based converter gives you a clean, well-exposed conversion with sensible defaults. What it does not give you is the granular control of Lightroom or Capture One — you're not adjusting individual tone curves, applying lens corrections, or doing localized dodging and burning.

For many use cases, that's perfectly fine. If your camera's metering and white balance were reasonably accurate (which they are on modern bodies 90% of the time), the default conversion produces a perfectly good image. If you need pixel-level creative control, a dedicated RAW editor is the right tool for the job.

Practical Tips for Common Scenarios

Batch Converting Vacation Photos

You're back from a two-week trip with 800 photos on your memory card. Here's the efficient approach:

1. Copy everything to your computer first. Don't work directly off the SD card — it's slower and riskier.
2. Do a quick cull. Delete the obvious duds: blurry shots, accidental shutter presses, the seventeen photos of the same sunset taken two seconds apart. You'll probably cut 30-40% right here.
3. Batch convert the keepers. Drop them into Fileza or your converter of choice. JPEG at quality 85-90 is ideal for sharing — great quality, reasonable file sizes.
4. Keep your original RAW files archived. Copy the RAW folder to an external drive or cloud backup. You'll thank yourself later when you want to properly edit the best shots.

Preparing Photos for Prints

If you're ordering prints — whether canvas prints for your wall or a photo book from an online service:

• Convert to JPEG at quality 95 for the best balance of compatibility and quality.
• Don't resize down. Let the print service handle sizing. Sending them the full-resolution file gives them the most data to work with.
• Check your color space. If your converter offers a choice, sRGB is the safest option for consumer print services. Adobe RGB has a wider gamut but many print workflows don't handle it correctly, resulting in dull or shifted colors.

Sharing on Social Media

Every social platform recompresses your uploads, often aggressively. Here's how to work with that rather than against it:

• JPEG at quality 80-85 is sufficient. Instagram and Facebook will recompress to around quality 70-75 regardless of what you upload, so sending a quality-98 file just means you're uploading a larger file that gets crunched down to the same result.
• Resize to the platform's native resolution. Instagram displays at 1080px wide. Uploading a 6000px-wide image means Instagram's compression algorithm makes all the resizing decisions. Resizing yourself and applying a touch of sharpening produces a better result.
• WebP works on most platforms now. If you're uploading to a platform that accepts it, WebP at quality 80 will look as good as JPEG at quality 90 in a smaller file.

Working With Mixed Camera Formats

If your household has multiple cameras (maybe a Canon and a Sony, or a dedicated camera and an iPhone shooting ProRAW), you'll end up with a mix of CR3, ARW, and DNG files. A universal converter that handles all RAW formats saves you from needing brand-specific software for each camera. Drop the whole mixed batch in at once and get JPEGs out the other end, regardless of which camera took which shot.

Wrapping Up

RAW photography doesn't have to be complicated. The format landscape is admittedly messy — every camera brand inventing its own proprietary format was not a great decision for photographers — but the actual workflow of converting RAW to shareable formats is straightforward once you understand what's happening.

Shoot RAW when you want maximum quality and editing flexibility. Convert to JPEG (quality 85-92) for sharing, to PNG for lossless archival, or to WebP for efficient web publishing. Keep your original RAW files backed up, because storage is cheap and regret is expensive.

And you absolutely do not need a Photoshop subscription just to convert your camera's files into something you can actually use. Free tools — including browser-based converters that never touch your photos on a server — handle the job cleanly and quickly. Your photos belong to you, and converting them shouldn't require handing them over to anyone else.