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GCodex
Free online G-Code viewer & simulator for CNC and 3D printer
GCodex is a free, browser-based G-Code viewer and simulator. No upload required, no signup needed. Features: - 3D & 2D toolpath visualization - Layer-by-layer inspection - Works with CNC machines and 3D printers - Supports Marlin, Klipper, and standard G-Code - Faster and cleaner than NCViewer and gcode.ws Just paste or load your G-Code file and instantly visualize your toolpaths. Perfect for makers, engineers, and hobbyists.
Our team built a low-cost bioprinter and wrote empirically-based G-code software BiosoftX from scratch for hydrogel scaffold generation. To validate that software, we needed a reliable toolpath viewer but every option out there was either paywalled, closed-source, or locked behind vendor ecosystems.
That frustration became GCodex.
Bioprinter vendors charge thousands for proprietary software that does exactly this. We built GCodex free and open because validation tools shouldn't be a luxury reserved for well-funded labs.
It works with everything that runs standard G-code: — 3D Printers: Prusa, Creality, Bambu Lab, Voron, Anycubic, — Bioprinters: Cellink BioX, RegenHU, custom DIY rigs
Drop your file → see your toolpath in 3D/2D instantly. No account needed. Your files never leave your device.
If you work with G-code — what's the one thing your current viewer can't do? We're actively building and your feedback shapes what comes next..
Enjoy
About GCodex on Product Hunt
“Free online G-Code viewer & simulator for CNC and 3D printer”
GCodex was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #41 on the daily leaderboard. GCodex is a free, browser-based G-Code viewer and simulator. No upload required, no signup needed. Features: - 3D & 2D toolpath visualization - Layer-by-layer inspection - Works with CNC machines and 3D printers - Supports Marlin, Klipper, and standard G-Code - Faster and cleaner than NCViewer and gcode.ws Just paste or load your G-Code file and instantly visualize your toolpaths. Perfect for makers, engineers, and hobbyists.
On the analytics side, GCodex competes within Open Source, 3D Printer and Developer Tools — topics that collectively have 590.3k followers on Product Hunt. The dashboard above tracks how GCodex performed against the three products that launched closest to it on the same day.
Who hunted GCodex?
GCodex was hunted by Hafiz Muhammad Fawad Shakil. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of GCodex including community comment highlights and product details, visit the product overview.
Hafiz Muhammad Fawad Shakil
Our team built a low-cost bioprinter and wrote empirically-based G-code software BiosoftX from scratch for hydrogel scaffold generation. To validate that software, we needed a reliable toolpath viewer but every option out there was either paywalled, closed-source, or locked behind vendor ecosystems.
That frustration became GCodex.
Bioprinter vendors charge thousands for proprietary software that does exactly this. We built GCodex free and open because validation tools shouldn't be a luxury reserved for well-funded labs.
It works with everything that runs standard G-code: — 3D Printers: Prusa, Creality, Bambu Lab, Voron, Anycubic, — Bioprinters: Cellink BioX, RegenHU, custom DIY rigs
Drop your file → see your toolpath in 3D/2D instantly. No account needed. Your files never leave your device.
👉 gcodex.tech
If you work with G-code — what's the one thing your current viewer can't do? We're actively building and your feedback shapes what comes next..
Enjoy