Caspian Office

A browser-based toolkit of PDF, image, and utility tools that runs entirely on your device — no uploads, no account, no limits. Use it online (installable, works offline) or download the single self-contained HTML file and keep it forever.

• 1.231.3: Mobile view tester says why a plain-http address stays blank: browsers block http frames inside an https page, so the tool now points to the window button instead of showing empty frames.Release2026年10月13日

  Typing a plain http address into the Mobile view tester used to leave the frames quietly blank. The tool now tells you why and shows the way around it.

  Read more →
• 1.231.2: One update, not two: Update now refreshes the site and the Workspace together, and no longer throws away downloaded AI models.Release2026年10月11日

  Pressing Update now used to fix the page you were on and leave the other one asking again. Now one press updates both the site and the installed Workspace, and your downloaded AI models stay put.

  Read more →
• 1.231.1: Mobile view tester: a window button opens the page in a popup sized like the device, which sites that refuse to be framed cannot block; the site's own frame policy no longer flags the tester.Release2026年10月11日

  Some sites tell browsers never to show them inside another page, so the Mobile view tester's frame stays blank. A separate window is not a frame, and now the tester opens one for you at the device's exact size.

  Read more →
• 1.231.0: Mobile view tester gets a settings sidebar: devices picked from grouped dropdowns, every control in one column beside a full-height stage, and a camera button that saves any device screen as a PNG.Release2026年10月11日

  The Mobile view tester has a new layout: every control lives in one settings column, the stage takes the full height of the page, and each device frame can be saved as a PNG screenshot.

  Read more →
• 1.230.2: Cleaner cut-outs on plain backgrounds: the background remover's Auto (AI) mode no longer leaves a faint haze between letters or pale fringes on the edges.Release2026年10月4日

  Logos and product shots on a plain background now come out of the background remover clean, with no faint veil of the old background left between letters or around the edges.

  Read more →