Pot să vibecodez FileChanger?

Ce construiești

Accept a file, shell out to pandoc, ImageMagick or FFmpeg depending on what it is, and hand the converted bytes back over HTTP or MCP.

ce îți trebuie

• pandoc
• FFmpeg
• ImageMagick
• LibreOffice headless for Office formats
• Typst or a LaTeX install if you want PDF out

Submitted by the person who runs FileChanger, so the verdict is deliberately the unflattering one: the engines are all open source and the DIY build is a sitting. Pricing checked 2026-08-07.

Promptul

O sesiune cu un agent de coding și versiunea ta merge.

Build me a personal file conversion service in an empty repo. Requirements:

- Python 3.12, FastAPI, uv for dependencies, SQLite for job state. One process,
  no broker, no microservices, no alternative stacks.
- Never write a converter. Shell out to pandoc for markup and documents,
  LibreOffice headless for Office, ImageMagick for images, FFmpeg for media.
- POST /convert takes a file, a source and a target format and returns the bytes
  below a size threshold set in config. Above it the same route returns a job
  id, GET /jobs/{id} reports its state and GET /jobs/{id}/result streams the
  file. One background worker thread is enough, do not add Celery.
- Build the format matrix at startup from `pandoc --list-input-formats`,
  `--list-output-formats`, `ffmpeg -formats` and `magick -list format` rather
  than hardcoding it, and serve it at GET /formats.
- Treat every upload as hostile: convert in a temp dir with a wall-clock
  timeout, an output size cap and no network, then delete the inputs whether it
  worked or not. Log the failing command and its stderr, never return either.
- Ship an MCP server over stdio using the official Python SDK, exposing convert
  and formats as tools so agents can convert without going through HTTP.
- Authenticate with API keys stored hashed in SQLite. Show the plaintext once at
  creation and support revocation.
- One HTML page, no JS framework: pick a file, pick a target from /formats,
  download the result.
- One Dockerfile installing pandoc, typst, libreoffice-core, imagemagick and
  ffmpeg, a compose file with a volume for the database, config in .env and a
  committed .env.example.
- Out of scope: accounts, billing, metering, quotas, telemetry, multi-tenancy
  and any hosted control plane.
- Test one round trip per engine (Markdown to PDF, PNG to WebP, WAV to MP3), an
  oversized upload and a conversion that hits the timeout. README covers setup,
  formats, security assumptions and where data lives. Finish by running the
  tests and listing the commands used.

Ce pierzi

• sandboxing, because your version runs files straight through the same toolchain as everything else on the machine
• the long tail of format pairs, where the fix is usually a missing font, a filter flag or an upstream bug
• queueing and timeouts for large video, which is where the compute bill actually lives
• a hosted MCP server and API keys your other tools can reach from anywhere, not just from localhost
• somebody else being on call when a LibreOffice or LaTeX upgrade quietly breaks PDF output

De ce se plătește în continuare

Nobody pays for the conversions that work. They pay for the awkward ones: the DOCX with tracked changes, the HEIC nobody can open, the MXF from a camera, the 4 GB video that has to finish while a browser tab is still open. Doing those reliably means keeping a toolchain installed, patched and fenced off from the files it is fed, and doing it for other people means doing it while strangers upload whatever they like. That upkeep is the product. The convert button is a weekend.

moat: Calitatea execuției Scara infrastructurii ce e un moat

the format long tail and the cost of running an untrusted-file box in public. Nothing structural.

Alternative gratuite

N-ai chef să ți-o construiești? Astea există deja, sunt gratuite sau open source, și le-am verificat una câte una.

Cine l-a construit deja

Să pornești de aici e tot vibecoding: promptul e pentru când o vrei exact în felul tău.

• Pandoc (se deschide într-o filă nouă) — The document half of any converter: markup, Office, EPUB and PDF in essentially any direction.
• FFmpeg (se deschide într-o filă nouă) — The audio and video half. Everything that converts media is calling this underneath.
• ImageMagick (se deschide într-o filă nouă) — Images, including the formats browsers refuse to open.

Ești de acord?

Aplicații similare

Smallpdf Pro 12 $ CAM AȘA iLovePDF Premium 9 $ DA Adobe Acrobat Pro 30 $ NU CHIAR