Every tool is its own subscription. Pay monthly, or switch to yearly and get two months free. Cancel anytime, 14-day money-back guarantee on everything.
Extracts clean audio from any MP4. The conversion runs on your machine, so the file itself is never uploaded.
Billed monthly. Cancel anytime.
Combines images into one PDF, with control over page size, order and margins.
Billed monthly. Cancel anytime.
Converts iPhone HEIC photos to JPG in the browser, in seconds.
Billed monthly. Cancel anytime.
Right-click any image and save it as PNG, JPG, WebP or PDF, whatever the original format.
Billed monthly. Cancel anytime.
Opens ZIP archives in the browser and extracts the files you need, without a desktop app.
Billed monthly. Cancel anytime.
Turns a PDF, local or by URL, into clean Markdown you can preview and copy.
Billed monthly. Cancel anytime.
Reads any web page, PDF or Google Doc aloud, with natural voices and live highlighting.
Billed monthly. Cancel anytime.
Boosts the audio of any tab up to six times the system maximum, with an optional equaliser.
Billed monthly. Cancel anytime.
Dismisses YouTube's “Continue watching?” prompt so long playlists keep playing.
Billed monthly. Cancel anytime.
Transcribes speech from the microphone, a tab or a file, powered by Whisper.
Billed monthly. Cancel anytime.
Records and transcribes meetings from the browser tab, with no bot joining the call.
Billed monthly. Cancel anytime.
Turns any YouTube link into a transcript with timestamps. Exports TXT, SRT and VTT.
Billed monthly. Cancel anytime.
Searches inside a video by word or meaning and returns a transcript, timestamps and a summary.
Billed monthly. Cancel anytime.
A clean, ad-free reader view for any article, with a dark theme and PDF export.
Billed monthly. Cancel anytime.
Sticky notes that stay on top of any web page or app, and work offline.
Billed monthly. Cancel anytime.
A plain-text notepad in a tab: type, edit and save as .txt.
Billed monthly. Cancel anytime.
Highlights and annotates PDFs online: upload, mark up, save.
Billed monthly. Cancel anytime.
Draws flowcharts and data-flow diagrams right in the browser.
Billed monthly. Cancel anytime.
Sends open tabs and YouTube videos to NotebookLM in bulk, instead of one by one.
Billed monthly. Cancel anytime.
Collects every link on a page or across tabs, filters them and exports the list.
Billed monthly. Cancel anytime.
Scans a page for dead links, 404s and redirects, colour-codes them and exports to CSV.
Billed monthly. Cancel anytime.
Previews any site as it looks on iPhone, iPad and Android screens.
Billed monthly. Cancel anytime.
An on-screen ruler for measuring distances and elements in pixels.
Billed monthly. Cancel anytime.
Generates styled Unicode text for Instagram, X and TikTok bios and posts.
Billed monthly. Cancel anytime.
Time-based 2FA codes, stored encrypted in your browser and available offline.
Billed monthly. Cancel anytime.
Clears cache, history, downloads and cookies in one click.
Billed monthly. Cancel anytime.
Scans QR codes from a page, an image, your camera or a shared screen.
Billed monthly. Cancel anytime.
Removes image backgrounds inside Figma in one click.
Billed monthly. Cancel anytime.
Fills Figma layers with data straight from Google Sheets.
Billed monthly. Cancel anytime.
Exports Figma frames in bulk, in the formats you choose.
Billed monthly. Cancel anytime.
No. Each tool is a separate plan, so you only pay for what you actually use. Pick one tool, or several.
You pay for 10 months and get 12. The yearly price is charged once and renews after a year unless you cancel.
Email info@kobaltstack.com within 14 days of purchase with your order number. We refund to the original payment method. Details are in our Refund policy.
Yes, at any time. The unused part of the current month is credited toward the yearly plan.
For five or more seats write to us at info@kobaltstack.com and we will put together a quote.