SumizAI vs Diwadi

What Diwadi is

Diwadi is a desktop app from India (Windows, Mac) offering built-in local AI for converting, previewing, and creating files — it works with PDF, Word, Excel, images, video, Markdown, and presentations in one multi-tab, VS Code-style workspace, with no need to switch between separate apps for each file type. It's positioned as a free alternative to paid Word, PowerPoint, or commercial video-converter tools.

All processing happens locally on the user's device, meaning full privacy (no file ever leaves the computer) and fully offline operation — without an internet connection you can still convert, edit, and preview files, which sets Diwadi apart from cloud competitors requiring a constant connection for server-side AI processing.

Built-in video and image editors in newer versions extend the app's scope beyond plain format conversion — users can trim video, adjust an image, or compress a file without leaving Diwadi, making it a real substitute for several separate tools at once for people who don't need the advanced features of professional editors, or an elaborate ai notes system for the project's documentation itself.

Autonomous "folder agents" is a feature that automates repetitive tasks across whole file directories — for example, bulk-converting every image in a folder to one format, or compressing every video file below a set size, saving time when working with large numbers of similar files at once.

For freelancers working with clients who send files in various formats (PDF from one, Word from another, a presentation from a third), Diwadi removes the need for a separate Microsoft Office or Adobe license just for previewing and minor edits — a real saving for occasional work outside one's main toolset of formats.

Compared to elaborate ai notes systems focused on text and knowledge organization, Diwadi is more of a universal "Swiss army knife" for files than a dedicated notepad — its strength is format versatility, not the depth of knowledge-organization features typical of specialized tools in that category.

The limitation is no Linux version and no cloud sync between devices — consistent with a fully local philosophy, but inconvenient for people working on multiple computers who want access to the same files everywhere without manually moving them between devices.

It's worth noting that a tool like this is especially useful for people who occasionally need to convert one file and don't want to install a full office suite for a one-off operation — Diwadi fills that gap with no subscription required, much the way a simple notepad fills the gap between having no tool at all and a full ai notes system.

For students preparing a presentation from material in several different formats (a scanned PDF, an Excel spreadsheet of data, photos from an experiment), being able to preview and convert everything in one place, with no switching between apps or paying for a license, genuinely cuts preparation time — something no single specialized notepad limited to plain-text ai notes content can offer.

In short, Diwadi is a practical, free tool for working with many file formats at once, with local AI and full privacy — a good alternative to paid office suites for people who don't need an elaborate these notes system, just convenient file preview and conversion.

What SumizAI is

A note-taking application built around a conversation with an AI model. You ask a question, the answer streams back, and the answers worth keeping become Markdown notes — filed into a vault that is a folder on your own disk.

A vault is a directory holding base.md, a generated table of contents up to six levels deep, and a notes/ folder with one .md file per note. Before a note is written it is checked against the ones already there, so the fourth note about the same idea gets merged instead of added. Links between notes are ordinary Markdown links to files that exist.

The model is never ours: you bring your own API key to one of seven providers — Anthropic, OpenAI, Gemini, Groq, OpenRouter, a local Ollama or your own server — and pay that provider directly. A question sends the table of contents plus at most five relevant notes within a 24,000-character budget, and the app shows you which five it used.

Every answer kept this way becomes one of these ai notes, ready to search again months later without hunting back through old chats.

Side by side

Where they differ

• Diwadi is a place to have the conversation. SumizAI is not a chatbot — the conversation is the input, not the product. What comes out of it is a .md file with a title, a place in base.md and a duplicate check against the notes already in the vault. If you only want to talk to a model, you do not need SumizAI.
• Diwadi is freemium: there is a free tier and a paid one, and the line between them is the thing to read before committing. SumizAI has one plan at a dollar a month, so there is no feature held back for a higher tier — and an unpaid account still opens and exports every vault it already has.
• AlternativeTo's description of Diwadi does not mention Markdown, so check what format your notes end up in before you fill it up. SumizAI writes standard .md files to a folder you picked, and an unpaid account can still export all of them.
• AlternativeTo lists no mobile version of Diwadi. SumizAI runs on macOS, Windows, iOS and Android.

Which one to pick