Everything you need to know about tobitmap.com — the converter, accounts, plans and privacy.
Click Sign up in the top-right corner, enter your email address and choose a password. You will receive a confirmation email — click the link inside to activate your account. The whole process takes under a minute.
No. You can convert images, adjust dithering settings and download results without any registration. An account unlocks watermark-free exports, extra formats (PNG, BMP, SVG) and saved presets.
First, check your spam or junk folder. The email is sent from no-reply@tobitmap.com. If it is not there, wait a few minutes and try signing in again — the app will offer to resend the link. If the problem persists, contact us at hello@tobitmap.com.
On the sign-in page, click Forgot password and enter your email address. You will receive a reset link within a few minutes. The link is valid for 24 hours.
Sign in, go to your account page and scroll to the Danger zone section. Deleting your account permanently removes all your data and cannot be undone. Active subscriptions are cancelled automatically.
The converter accepts any image format your browser can display: JPEG, PNG, GIF, WebP, AVIF, BMP and most SVG files. The image is read entirely in your browser — nothing is uploaded to a server.
There are three ways to get your image into the converter:
Dithering is a technique that simulates tones and gradients in a 1-bit (black and white) image by arranging pixels in patterns. Without dithering, every pixel is either pure black or pure white, which can look very stark. With dithering, subtle textures emerge that give the impression of grey values.
tobitmap.com offers two families of dithering algorithms:
You can also choose Threshold (no dithering at all) for the hardest, highest-contrast result, or Random for a noisy, grain-like texture.
Cell size sets how many screen pixels wide each “dot” is before the dithering pattern is applied. A cell size of 1 processes the image at its native resolution. A larger cell size (2, 4, 8…) creates a chunky, pixelated look. Use larger cells for bold graphic art, printing on low-resolution devices or a deliberate low-fi style.
Threshold controls the grey value at which a pixel tips from white to black. A lower threshold (towards 0) makes the image brighter — fewer pixels turn black. A higher threshold (towards 255) darkens the image — more pixels turn black.
Brightness is a global pre-adjustment applied before dithering. Increase it if your source image is underexposed; decrease it for overexposed or very light images. Combining both sliders gives you fine control over the final look.
Yes. Use the Crop tool to drag a selection on the canvas and trim the image to that region. Use the Rotate buttons to rotate the source image 90° clockwise or counter-clockwise before conversion. Both operations are non-destructive — you can reset to the original at any time.
Click the Compare button (or press C) to overlay the original colour image on top of the converted result. Drag the divider line to reveal more or less of each side. This makes it easy to judge how much detail the dithering preserves at different settings.
The free plan exports a watermarked JPEG. Paid plans unlock:
After converting your image, tobitmap.com traces the pixel grid and outputs a clean SVG file where every black cell is a filled rectangle. The resulting file is infinitely scalable with no quality loss, making it ideal for laser engraving, vinyl cutting and high-resolution print. File sizes are reasonable for typical images (under 2 MB for most outputs). See the SVG export guide for tips.
Scale multiplies the output canvas size. At scale 1× each pixel in the dithered result becomes one pixel in the exported file. At 4× each pixel becomes a 4×4 block, giving you a larger file that looks identical when viewed at the same physical size but has more pixels for printing. Use a higher scale when printing at large sizes or when the target software requires a minimum resolution.
The watermark appears on exports from free (unregistered) accounts. Create a free account and subscribe to any paid plan to download watermark-free files in all available formats. If you already have a paid account and still see a watermark, make sure you are signed in.
Yes. The Batch mode lets you drop a folder of images and apply the same dithering settings to all of them in one go. All processing happens in your browser — no files are uploaded. Batch export is available on paid plans.
The free plan gives you full access to every dithering algorithm, all adjustment controls (threshold, brightness, cell size, crop, rotate) and the ability to download a watermarked JPEG. There is no time limit — you can use the free plan indefinitely.
All paid plans remove the watermark and unlock PNG, BMP and SVG export. Higher tiers additionally unlock Batch mode, saved presets, larger scale options and priority support. Visit the Pricing page for a full comparison.
The free plan itself is essentially an unlimited trial — every feature except watermark-free export and advanced formats is available without paying. We do not offer a time-limited trial of paid features at this time, but you can cancel within the first billing cycle and request a refund (see Refund policy).
Both billing cycles give you identical features. Yearly billing is discounted compared to paying month by month — typically saving around two months of cost per year. You can switch between cycles from your account page at renewal time.
Payments are processed securely through Stripe. We accept all major credit and debit cards (Visa, Mastercard, American Express), as well as Apple Pay and Google Pay where available. No payment details are stored on our servers.
Yes. Sign in, go to Account and click Cancel plan. Your subscription remains active until the end of the current billing period, after which your account reverts to the free plan. No further charges are made.
If you are not satisfied, contact us at hello@tobitmap.com within 14 days of your payment and we will issue a full refund, no questions asked. Refunds for renewals after the 14-day window are considered on a case-by-case basis.
Stripe automatically sends a receipt to your email address after every successful payment. If you need a formal invoice with company details, contact us at hello@tobitmap.com and we will arrange it.
No. The entire conversion process runs locally inside your browser using the Canvas API. Your images are never sent to any server, never stored in the cloud and never seen by anyone other than you. This is a core design principle, not just a policy statement.
If you create an account, we store your email address and a hashed password. We also store billing records (via Stripe) and session tokens to keep you signed in. We do not sell personal data. See the full Privacy policy for details.
We use a single session cookie to keep you signed in between visits, and a cookie to remember that you have accepted the cookie notice. We do not use advertising or tracking cookies. Read our Cookie notice for more information.
Adjust the Threshold slider first — moving it left (lower) brightens the result; moving it right (higher) darkens it. If the overall contrast feels off, use the Brightness slider to pre-correct the source image before dithering. A combination of both sliders gives you the most control. Different dithering algorithms also produce different perceived brightnesses: Atkinson tends to be lighter, Floyd–Steinberg closer to true grey.
There is no hard file-size limit, but very large images (above roughly 4000 × 4000 px) may be slow to process because everything runs in your browser. The converter automatically resizes the preview canvas to a sensible working size, but the exported file always matches the original resolution multiplied by your chosen scale setting.
Any modern browser works: Chrome, Firefox, Safari, Edge and their mobile equivalents. The converter uses standard Canvas 2D APIs available in all current browsers. Internet Explorer is not supported.
The converter itself runs entirely in the browser, so once the page has loaded you can disconnect from the internet and continue working. However, you need an internet connection to load the page initially, to sign in or to download updates. Offline / PWA support is on our roadmap.
Still have a question? Write to us at hello@tobitmap.com — we reply within one business day.