The 10-second version
That’s it. The capture goes straight into Boom’s own storage — no outside service ever holds it — and the link you paste shows the image right in Slack, ClickUp, Gmail or a text.
Hotkeys
Ctrl + Shift + C is Snapee’s choice (it was Gyazo’s); the Print Screen ones are ShareX’s defaults. Change any of them in ShareX → Hotkey settings: pick the row, click its key box, press the new keys. While ShareX runs, Ctrl + Shift + C belongs to it everywhere — in a browser it no longer opens DevTools’ element picker. If Print Screen opens the Snipping Tool instead, see Troubleshooting.
Recording video & GIFs
- MP4 for walkthroughs and bug reports — sharp, small, and it can carry your voice.
- GIF for a few seconds of motion that should loop silently in a chat thread.
- No length limit. Recordings upload straight to storage, not through the website, so a ten-minute demo works the same as a screenshot.
- The first recording asks to download FFmpeg. Say yes — it’s what ShareX records with.
- To include your voice, pick a microphone under Task settings → Screen recorder → Screen recording options → Audio source.
Marking it up before you share
Turn on After capture tasks → Open in image editor and every capture opens for a quick edit before it uploads. Close the editor and it carries on as normal.
- Arrows, boxes and text to point at the thing that matters.
- Step numbers — click, click, click — for how-to screenshots.
- Blur or pixelate anything private: client data, emails, passwords, card numbers.
- Highlight and magnify to pull the eye to one small detail.
Your library
Everything you’ve captured lives in your dashboard, newest first, grouped by day. Sign in with your Boom account — the same one as every other Boom app.
- Press / to search by file name, and filter to images, clips or files.
- Copy link to share an old capture again; Delete removes it from storage for good.
- In Chrome or Edge, use Install app from the address bar to pin the Library to your taskbar like any other program.
ShareX extras worth knowing
Tools → OCR. Drag over an image, a PDF or a video frame and the text lands on your clipboard.
Tools → Scrolling capture. One tall image of a whole web page or a long chat thread.
Tools → Pin to screen. Keeps a capture floating on top while you work from it.
Tools → Color picker. Hover any pixel, get its hex code.
Capture → set a delay, for menus and tooltips that close when you press a key.
After upload tasks → Show QR code, to move a capture to your phone in one scan.
Setting up a computer
- Install ShareX (free, open source).
- Only if you use the Print Screen hotkeys: on Windows 11, free up the key — see Troubleshooting.
- Sign in and open New machine. It lists every ShareX setting with a copy button next to each one.
- Take a test capture. It should appear at the top of the Library.
Troubleshooting
Print Screen opens the Windows Snipping Tool instead
Windows 11 claims the key. Settings → Accessibility → Keyboard → “Use the Print screen key to open screen capture” → Off, then restart ShareX.
Uploads fail with “Access Denied”
Almost always the secret key: a stray space or quote got pasted with it. Copy it again from New machine. Also check Use path style request is on.
The copied link doesn’t start with boom-snapee.b-cdn.net
Use custom domain is off, or the domain has a typo. The link still works; it just isn’t the fast CDN one.
A long recording fails but screenshots work
The Image and File uploaders must both be Amazon S3. The “Snapee (via app)” fallback goes through the website and stops at 4.5 MB.
I deleted a capture but the link still loads
The file is gone from storage; the CDN can serve a cached copy for a little while before it expires.