
Deno
Vite
Node.js
Next.js
VS Code
Fresh Framework
Nest.js
Bun is an all-in-one JavaScript runtime & toolkit designed for speed, complete with a bundler, test runner, and Node.js-compatible package manager.

ChatToPdf.app
MyChatWrap
PrintChat.app
Mastros.online
Mastros.online WhatsApp Scraper
WhatsApp Business
Decipher TextMessage
A private and seamless way to view WhatsApp chat exports.

Which is more popular?
Based on our record, Bun.sh seems to be more popular. It has been mentioned 239 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | bun.sh | chatparser.online |
| Pricing | ||
| Company | 2023 | Startup from Sri Lanka · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Bun is a new JavaScript runtime built from scratch to serve the modern JavaScript ecosystem. It has three major design goals: Speed. Bun starts fast and runs fast. It extends JavaScriptCore, the performance-minded JS engine built for Safari. As computing moves to the edge, this is critical....
Free WhatsApp chat viewer to open exported chats instantly. Upload .txt or .zip files and explore your chat history privately in your browser.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Bun.sh and ChatParser.
ChatParser's answer:
ChatParser stands out because it uses a fully client-side (zero-server) architecture, meaning all chat processing happens directly in the user’s browser. Unlike other tools that upload sensitive data to servers, ChatParser ensures complete privacy.
It also recreates WhatsApp chats in a realistic, app-like interface, making exported conversations easy to read, search, and explore. Combined with fast performance and offline capability, it delivers a smooth and secure experience without requiring installation or login.
ChatParser's answer:
It is faster, more private, and easier to use. No data upload, no login, and works instantly with large chat files.
ChatParser's answer:
Anyone who exports WhatsApp chats and wants an easy, secure way to view them, including students, professionals, and everyday users.
ChatParser's answer:
It was created to solve the problem of messy WhatsApp exports by turning them into a simple, readable, and private chat experience.
ChatParser's answer:
React, TypeScript, IndexedDB, JSZip, and virtual scrolling.
Share your experience with using Bun.sh and ChatParser. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Early Bun research and benchmarks for Flight and Scribe by Vasilen Lyubomirov (github.com/VasilenL), whose work helped start this. - Source: dev.to / about 23 hours ago
It's a single TypeScript service running on Bun, with its data in one SQLite file (bun:sqlite). The pipeline runs in passes, and each pass goes through these stages:. - Source: dev.to / 10 days ago
The toolchain is free. Bun, LibreOffice (headless rendering), poppler and open metric-compatible fonts (Carlito, Caladea, Liberation, Gelasio). - Source: dev.to / 3 days ago
Tracking ChatParser since Apr 2026.
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