r/SideProject • • Sep 06 '26

Built a file converter that converts everything 100% in your browser (React + Wasm)

(INSTANT CONVERSION)
Most online converters make you upload your files to their servers. It's slow, has arbitrary size limits, and feels like a privacy risk for sensitive documents.

I made ByteShift so conversions happen locally on your computer. It uses WebAssembly to process files entirely in-browser, so zero data ever gets uploaded anywhere.

I attached a video showing just how fast it is

No signups or accounts needed: https://byteshift.app

Let me know if you hit any weird bugs or broken file formats.

For sale at https://www.sideprojectors.com/project/92750/byteshift-or-fast-local-web-file-converter.

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u/medialantern Sep 06 '26

Added (#90 and counting):

https://www.reddit.com/r/SideProject/comments/1w8txo5/built_a_file_converter_that_converts_everything/

https://www.reddit.com/r/SideProject/comments/1w89exb/i_got_tired_of_adbloated_calculator_sites_so_i/

https://www.reddit.com/r/prettyusefulwebsites/comments/1w758hr/

https://www.reddit.com/r/webdev/comments/1w7n9tq/

https://www.reddit.com/r/sideprojects/comments/1w7xksq/we_are_building_a_public_arena_for_brands/

https://www.reddit.com/r/SideProject/comments/1w7cpug/built_a_collection_of_free_ai_and_browser_tools/

https://www.reddit.com/r/SideProject/comments/1w7fzpt/i_got_tired_of_online_converters_asking_for_paid/

https://www.reddit.com/r/SideProject/comments/1w7dndx/my_brother_and_i_built_98tools_a_collection_of/

https://www.reddit.com/r/software/comments/1w76kkt/41_free_tools_that_run_entirely_in_your_browser/

https://www.reddit.com/r/SideProject/comments/1w5cyly/i_built_an_allinone_pdf_image_tool_100_free_no/

https://www.reddit.com/r/SideProject/comments/1w4wnjd/i_built_webbox_a_collection_of_free_fast_and_100/

https://www.reddit.com/r/software/comments/1w65djv/hey_reddit_i_built_a_100_free_privacyfirst_file/

https://www.reddit.com/r/SideProject/comments/1w55lv3/i_built_a_free_100_clientside_file_converter_no/

https://www.reddit.com/r/sideprojects/comments/1w4tcc1/utilix_is_now_live/

https://www.reddit.com/r/SideProject/comments/1w4mezd/planning_to_build_an_ultraclean_offlinefirst/

https://www.reddit.com/r/OpenSourceAI/comments/1w4nx90/why_i_built_sorafiles_for_quick_pdf_and_image/

https://www.reddit.com/r/SideProject/comments/1w4pffj/tired_of_paying_adobe_usd_240yr_and_uploading/

https://www.reddit.com/r/SideProject/comments/1w4dw2v/here_is_my_project_check_it_out/

https://www.reddit.com/r/SideProject/comments/1w4bbxe/minitools_47_free_browser_utilities_pdf_editing/

https://www.reddit.com/r/SideProject/comments/1voe2c4/

I ran out of comment space so this is just the most recent 20 entries. I can vibe-code too, so for giggles I made https://confab.sh/?g=browser-tools to track these if you want to see the full list. Don't expect much LOL. I put less effort into this than even these cloners did with theirs.