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Digital darkroom in your browser

Your negatives,
in positive
for real.

Photograph your negatives with a camera, drop them here and walk away with a positive that already has its colour. No plugins, nothing to install and without uploading your photos to any server: everything is computed inside your browser.

See how it looks Packages

0 uploads to the cloud C-41 and black & white JPEG · PNG

Negative Positive

Developing the sample…

01 — How it works

Four steps and done

It is the same darkroom I use for my own archive, running inside your browser.

Step 01

Photograph

The negative over an even light, with the white balance set on the orange film base.

Step 02

Drop it

Drag the file in and mark the edges of the frame. You can drop the whole roll at once.

Step 03

Fine-tune

It comes out developed. If you want, adjust it with the dials or the minilab keypad, then copy it to the whole roll.

Step 04

Export

JPEG at the original size, nothing resampled. Ready for your usual editor or for printing.

Nothing leaves your machineThere is no image server, no account and no copy. Close the tab and nothing is left.
Roll consistencyOne development is copied to all 36 frames at once, the way a lab filters a whole roll.
Always reversibleEverything can go back to neutral. The original is never touched.
02 — The darkroom

See it with a real photograph

This is a real 35 mm negative. Move the dials, open the minilab and compare before and after. To develop your own you need a package.

Available on tablet or computer

On your phone you will not be able to enjoy the developer the way we want you to, so we decided it is better on a tablet or a computer.

Open it from there and you get the whole developer, with the dials, the minilab and the before and after.

You can carry on reading here and buy from your phone without any problem: the key works in any browser.

To open it later on your computer: · email it to myself

NEGATIVE ARCHIVE CAPSULE
Developer

A 35 mm negative, untouched

Hit “Sample photo” and you'll see the whole darkroom working: dials, minilab, before and after. One negative of your own, free: you develop it in full on screen, with every dial. Downloading it —and developing the rest of the roll— takes a package.

See packages
Developing…
0.0°
The roll will appear here
Histogram
Develop
Colour
Presence
Roll
Roll colour: needs 5 photos from the same roll

Your files never leave this machine. There is no image server and no account.

COLOUR · MINILAB ×
+ Tone
BALANCE
On top of the automatic conversion · reversible

To take your photos home

You have already developed your trial negative

One negative of your own, free: you develop it in full on screen, with every dial. Downloading it —and developing the rest of the roll— takes a package, from 3,90 €, one-off payment.

That was your free negative: in full on screen, with every dial, on your own material. Downloading it —and developing the rest of the roll— takes a package, from 3,90 €, one-off payment.

See the packages I already have a key

Carry on developing

RAW files don't open here

What you dropped is a RAW file (.CR2, .CR3, .NEF, .ARW, .DNG…), and the browser cannot decode it. It is not your fault, and it is not a bug.

What goes in here is JPEG and PNG. Export the negative to JPEG from your own software and drop it again: the development is exactly the same.

And if what you have is the whole roll in RAW, that is where the desktop app comes in: it reads RAW directly and uses its 14 bits, which is where the good colour of the orange base comes from.

See the desktop app Got it
03 — Packages

The Negative Archive Capsule Lite packages

Three, no fuss. One-off payment for the first two, no expiry and no hidden subscription. The third is for whoever has a box of rolls waiting. Negative Archive Capsule Lite is this in-browser version; the desktop app is a separate product, with its own price.

The shop opens in a few days I am still setting up payments. Leave me your email and I will tell you on day one, with a founder price. In the meantime, the sample photo is there so you can see what the darkroom does. Tell me
Before you buy, plainly
Who sells it to you

Not me

Gumroad, Inc. charges you, invoices you, applies your country’s VAT and handles refunds. I answer for the darkroom working and for your key.

Change your mind

You get back what you haven’t spent

Within 14 days you get a refund for the conversions you have not used; only the ones already done are excluded. If you used none, it is the full amount. On buying you expressly agree to start straight away and to lose the right of withdrawal over each conversion as you use it.

Your key

Good for 10 activations

Plenty for your computer, your phone, another browser and several cleared caches. It exists so a key does not end up circulating on a forum, not to tie you to one machine: if you run out through normal use, write to me and I reset the counter at no cost. And with the monthly plan the site checks now and then that the subscription is still live — but if the server does not answer, your licence keeps working.

What the photo needs

White balance on the orange base

The negative has to be photographed properly. If the file arrives with the blue crushed, that colour is gone for good — a limit of the 8-bit JPEG, not of the engine. Try it first with the sample photo and watch the histogram.

Short pack
3,90 €
0,33 € per negative
For a short roll, or to try it on your own work.
  • 12 negatives, developed and exported
  • Your file’s megapixels, no watermark
  • Dials, minilab and before/after
  • One-off payment, no expiry
Buy
One roll
Roll pack
7,90 €
0,20 € per negative
The 36-frame roll, plus four on the house.
  • 40 negatives, developed and exported
  • Your file’s megapixels, no watermark
  • Export the whole roll at once
  • One-off payment, no expiry
Buy
Free month
9,90 € / month
As many as you like
To empty that box of rolls once and for all.
  • Unlimited negatives
  • Your file’s megapixels, no watermark
  • Cancel whenever you like
  • Renews month to month, no commitment
Subscribe

One conversion is one negative: re-exporting the same negative as many times as you like doesn't count. Prices include VAT. Payment is handled by an external provider; no card details are stored here. Already have a key? Activate it here. Before buying, please read the terms of sale.

04 — About me

I made this myself,
for me, before I made it for you

Fran Yitani sitting in a square in Madrid
Fran Yitani · MadridPhoto by Víctor Rubido

I tell stories with light.
Moments that feel like memories.

I’m Fran Yitani — a Venezuelan photographer and filmmaker based in Madrid. I document places, people, and memories through photography and film.

My work lives between nostalgia and presence — exploring identity, home, and the poetry of everyday life.

Alongside personal projects and short films, I collaborate with brands and people who value honest, human storytelling.

I started photographing my negatives with a camera because the scanner took forever. The problem was what came after: the colour never came out right.

I tried everything out there: inverting by hand, paid plug-ins, presets.

I have spent a while building a program made for film, and for keeping my whole archive in one place. Over the years I learnt a lot, and I kept applying it to what I felt was missing in other programs.

That is where Negative Archive Capsule came from: the app I use every day for my own archive. The conversion engine is available now in its web version, and the desktop one is coming soon. Join the list if you want to hear about it when it lands.

C-41and black & white
0photos uploaded to the cloud
Madridsince 2015

The desktop app · coming soon

For what you photograph with your camera,
this is already enough

If you work in RAW and want an archive with a catalogue, contact sheets and tethered shooting, the desktop app is the next step: the application I archive, convert and develop my own analogue archive with, using the same engine you have just tried. For Mac.

It opens and the first thing you see is your archive, not a blank canvas: the rolls in the sidebar and the photos in a grid. You pick one and go into the darkroom, where you find the minilab —the colour controls that correct the cast the way a lab does—, the loupe for looking at the grain at real size, and the contact sheet for sifting the whole roll with a grease pencil, just like on paper.

  • Native RAW (ARW, CR2, NEF, DNG…) without going through JPEG
  • Your whole archive, not just what you photograph: import the scans the lab already gave you and catalogue them alongside the rest
  • The whole roll at once: automatic frame, orientation and colour, and one single look for the whole strip
  • A catalogue that searches: tags, text inside the photo and lookalike photos, all worked out on your own machine
  • Dust and hair removal, local masks, curves and HSL
  • Tethered camera: you shoot and the developed positive appears on screen
  • Works offline: your photos never touch the internet; it only needs a connection once, to activate the licence

✓ You are on the list. I will write on launch day, with a founder price.

Just the email, just for that one message, unsubscribe in one click. Privacy.

NEGATIVE ARCHIVE CAPSULE
Negative Archive Capsule just opened: the archive grid with the rolls in the sidebar
When you open it: your archive, roll by roll
The NAC loupe open over a photo, showing the grain at real size
The loupe: the grain at real size
A NAC contact sheet: the whole roll in continuous strips with the edge markings
The contact sheet: the whole roll
Mac · coming soon
05 — Questions

FAQS

No. The whole development happens inside your browser: the file is opened on your machine, converted on your machine and saved on your machine. There is no image server, no account and no copy. Close the tab and nothing remains. And you can check it yourself: open your browser's developer tools (F12, or ⌥⌘I on a Mac), go to the “Network” tab and drop a negative. At most you'll see your key being checked and the visit counter: two tiny requests with no image in them. On top of that, the page's security policy (CSP) only lets it talk to this domain and to those own services: it is the browser itself that prevents your photos from being sent anywhere else.

With even light behind it (a tablet showing a white screen works), in focus, free of reflections and as flat as possible. And one detail that decides the result: set the white balance on the orange base of the negative, using your camera’s custom white balance pointed at the film rebate. That is the difference between a clean positive and one that drifts magenta.

The long guides: How to photograph negatives with a camera, White balance on the orange base and Digitise a roll at home without a scanner.

It depends how expired it is, and that is in the negative, not in the converter. Film loses density and its colour layers drift with age, with heat and with airport X-rays: a roll from 1998 in a drawer does not have the colour of one developed last month. The converter corrects it as far as the material allows, and from there you have the white balance eyedropper, temperature and tint. What I will not promise you is perfect colour on a negative that no longer has it.

One negative of your own, free: you develop it in full on screen, with every dial. Downloading it —and developing the rest of the roll— takes a package. You open it, move the dials, use the minilab and the eyedropper, and see it on your own material rather than on a photo of mine. The sample photo, besides, is there with no limit.

What exactly the engine does and what it does not ask of you is told in Convert negatives without installing anything.

The development is the same. NAC on the desktop also opens RAW without going through JPEG, finds the frame on its own, keeps a catalogue with tags and search, removes dust, allows local masks and curves, builds contact sheets and shoots tethered. This is the front door; that is the whole lab.

JPEG and PNG. If the lab gave you the scans as TIFF, export them to JPEG and drop them here. iPhone HEIC files only open in Safari; in any other browser, export them to JPEG from Photos. The desktop app opens TIFF and RAW without converting.

Not for now. Negative Archive Capsule Lite inverts negatives: a slide is already positive, and what it needs is an adjustment, not an inversion. If you drop one here, the result won't make sense. The desktop app does tell a negative from a slide.

Yes: the darkroom doesn't know about formats, it knows about negatives. 135, 120, 4×5… in colour (C-41) and in black and white. What decides the result is not the format but the photograph of the negative: even light, flat, in focus, and with the white balance set on the orange base.

The developer does not: it opens on a tablet or a computer. It's measured, not a whim: on a phone the working photo is left with a quarter of the area it needs, and the controls fall below the size of a finger. On a tablet it works perfectly, with even more room than on a small laptop, with one detail: on iPad, Safari caps the export at 16 megapixels; on a computer it comes out at the full size of your file. The rest of the site does work on a phone: you can read it all and buy without trouble, as the key works in any browser.

When you buy, you get a key by email. Paste it into the activation page and it stays saved in that browser. If you switch browser or machine, just paste it again as many times as you need. If anything goes wrong, write to me and we will sort it out.

And if it isn’t here?

Write to me and I answer you myself. No form, no ticket, no bot.

hello@franyitani.com

Purchases and refunds are handled by Gumroad, Inc.; the darkroom and your key are on me.