Tools for developersWorks with Microsoft Office

5 match your filters — 5 of them answered our check today.

Watching this group for 20 days · how we check

This week1 new arrival

Converts Markdown into inlined, Outlook-safe HTML you can paste into ConvertKit, beehiiv, or Mailchimp, entirely in your browser — built for newsletter writers and marketers who draft in Markdown.

FreeNo sign-upData stays with you
What to know
How it works
Converts Markdown into fully inlined, Outlook-safe HTML entirely in the browser, ready to paste into ConvertKit, beehiiv, Mailchimp or other email service providers, with built-in email-safe callout boxes and CTA button syntax.
What's different
Runs 100% client-side with no signup, account or paywall, so content never leaves the browser.
Pricing
Free, no signup, no paywall.
Best for
Newsletter writers, marketers and indie developers who draft in Markdown and need Outlook-safe HTML for their email platform.

Watched for 10 days · last checked 4d ago

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.MDPPT

Live

Converts Markdown files straight into PowerPoint slides, skipping manual copy-paste and reformatting — useful for developers writing specs, teachers prepping lecture notes, or anyone building decks.

Data stays with youCan export my data
What to know
How it works
Converts Markdown files into PowerPoint presentations, automatically splitting slides by headings (#, ##, ###) and preserving bullet points, numbered lists, and code blocks with syntax highlighting.
What's different
Processing is fully client-side, so your content never leaves your browser; exports as .pptx or .pdf.
Best for
Developers, technical writers, educators and anyone who prefers writing in Markdown but needs to present in PowerPoint.

Watched for 18 days · last checked 2d ago

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Doczen

Live

A free browser-based PDF toolkit for merging, converting, compressing, editing and signing documents without installing software.

Domain registered 2 months ago

FreeNothing to install
What to know
How it works
Runs in-browser for merge, split, compress, sign, convert and more
Pricing
free
Best for
Students, professionals and developers handling PDFs regularly

Watched for 5 days · last checked 4d ago

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A unified API letting developers connect Google Calendar, Outlook, Apple Calendar and CalDAV without building OAuth, webhooks and sync logic themselves — infrastructure for engineering teams.

What to know
How it works
A single API to integrate Google Calendar, Microsoft Outlook, Apple Calendar and CalDAV, handling OAuth flows, webhook processing, recurring event handling and incremental sync.
What's different
Replaces weeks of building provider-specific calendar integration logic with one API.
Best for
Developers building scheduling features who don't want to build calendar infrastructure themselves.

Watched for 17 days · last checked 11d ago

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Verifies whether Gmail, iCloud, and other email addresses actually exist using browser-based login simulation.

Domain registered 3 months ago

Nothing to install
What to know
How it works
Uses browser automation to simulate real login attempts on Gmail, iCloud, Yahoo, Outlook, and 20+ providers, plus SMTP checks for business domains, bulk CSV upload, and API access.
What's different
Unlike verifiers that only check syntax and DNS, it can tell if a Gmail or iCloud address actually exists.
Pricing
Pay-as-you-go.
Best for
Email marketers and developers needing accurate lists.

Watched for 12 days · last checked 1d ago

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