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Top 23 JavaScript Converter Projects
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chai
chai - Experience Zero Trust security with Chai! Convert and view documents as vivid images right in your browser. No mandatory downloads, no hassle—just pure, joyful security! 🌈 (by DO-SAY-GO)
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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LLMFeeder
Brower extension to convert web pages to clean Markdown and copy to clipboard so you can feed it to your favorite LLM model as context with just 1 click!
Project mention: Show HN: LLMFeeder – Browser extension to extract clean content for LLM context | news.ycombinator.com | 2025-06-03 -
save-file-converter
Converter for retro console save files to and from MiSTer, flash cartridges, Nintendo Switch Online, and save states from online emulation websites. Convert .srm to .sav and .sav to .srm. Convert files found around the Internet: All common formats for NES/SNES/GBA/N64/TG16/SMS/Genesis/Neo Geo/PS1 supported. Decrypt PSP saves.
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unicode-formatter
Convert portions of text to fancy text using unicode fonts for use on Twitter and other sites that don't support rich text
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YNABGoingDutch
A converter between the CSV format of Dutch banks and the YNAB format. Or sync your bank statement directly with YNAB!
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tibia-maps-script
:wrench: A command-line utility to convert between binary Tibia maps and human-readable forms of the map data.
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indoynab
An online YNAB converter for your Indonesian bank statements. No install, no sign-up. Currently covering: BCA, BNI, BSI, Jenius.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
JavaScript Converter discussion
JavaScript Converter related posts
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Show HN: OmniTools – Self-Hosted Open-Source Swiss Army Knife for Everyday Tasks
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X to Image: Turn X posts into shareable images
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I don't always use LaTeX, but when I do, I compile to HTML (2013)
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[Test Server] - Integer Overflow Bug or: How I turned my EK into a walking DP and hunted endlessly.
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Magic Web Explorer
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Ask HN: Is it just me, or could file conversion websites be a honeypot?
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A question about maps
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A note from our sponsor - Sevalla
sevalla.com | 21 Oct 2025
Index
What are some of the best open-source Converter projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | showdown | 14,691 |
| 2 | ReLaXed | 11,801 |
| 3 | numi | 6,193 |
| 4 | decktape | 2,298 |
| 5 | node-html-to-text | 1,665 |
| 6 | synp | 782 |
| 7 | chai | 368 |
| 8 | LLMFeeder | 212 |
| 9 | save-file-converter | 203 |
| 10 | genshin-audio-extractor | 161 |
| 11 | TOML-to-Go | 150 |
| 12 | owmidiconverter | 130 |
| 13 | ducky2python | 129 |
| 14 | color-tools | 85 |
| 15 | x-image | 78 |
| 16 | unicode-formatter | 77 |
| 17 | YNABGoingDutch | 49 |
| 18 | townsclipper | 33 |
| 19 | tibia-maps-script | 18 |
| 20 | ejc-cli | 17 |
| 21 | js-utils | 15 |
| 22 | romanice | 7 |
| 23 | indoynab | 7 |
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