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Fiverr Pro
English
$
USD
I will develop custom software apps games and automation tools
Mateusz
About this gig
Apps, games, tools and automation: describe your goal and platform for a feasibility check and custom offer. Language, features, rights, tests and delivery are agreed per project. No planning purchase required.
FIXED PACKAGES: LOCAL PYTHON FILE TOOLS
Basic: 1 input, up to 2 operations, 1 output.
Standard: up to 2 inputs, 4 operations, 2 outputs.
Premium: up to 3 inputs, 6 operations, 3 outputs.
Flat CSV/JSON or plain text, at most 20,000 rows AND 2 MB in total. Choose exact-match filtering, sorting, duplicate removal, field mapping or literal text replacement. Originals stay unchanged.
Receive reusable Python source, normal/error-case tests, README and an example command. You install Python and run it in a terminal; reuse it with matching files.
Fixed packages exclude GUI, EXE, remote installation, paid libraries, external APIs, hosting, Excel macros, scraping, logins, app-store release and maintenance. Apps, games and larger workflows require a separate agreement, not a fixed package purchase.
Send non-sensitive samples for file-tool orders. The gallery illustrates the service range, not client work.
Get to know Mateusz
Mateusz
AI consulting and development, software, websites and media
- FromGermany
- Member sinceSep 2026
Languages
German, English, Polish
I'm Mateusz. I create digital solutions and content for business and personal projects. Send your goal, material, budget and deadline. Computers, programming and technology have been part of my life since age 10. My services cover AI consulting, setup, development and support; software and automation; websites and web design; video, audio, voice-over and music; social media and advertising content; presentations, documents, research and writing. Choose an available Gig or ask about custom work. Feasibility, scope, delivery, price and rights are agreed before a custom offer.
FAQ
Can I request apps, games or larger automation projects?
Yes. Describe your goal, platform, users and functions. I assess feasibility, rights, integrations, tests and delivery before a custom offer. Languages and tools are chosen for the project; not every request can be accepted. Fixed packages cover local Python file processing, not apps or games.
What is included in a standard tool?
One reusable Python command-line tool for flat CSV/JSON data or plain text. Basic allows 1 input and 2 operations, Standard 2 inputs and 4 operations, Premium 3 inputs and 6 operations. Total input: at most 20,000 rows and 2 MB. Files are processed locally and originals stay unchanged.
Which operations can I choose?
Exact-match filtering, sorting, duplicate removal, field mapping or literal text replacement. Describe the complete input-to-output workflow; we identify each required rule. Different schemas, fuzzy matching, database joins or advanced transformations require an individually scoped offer.
How will I run the tool and what do I receive?
You receive Python source, normal/error-case tests, a README, setup/run instructions and an example command. Install Python and run the command in a terminal with your files; reuse it with matching new inputs. No GUI, EXE, remote installation, paid library, external API or hosting is included.
Do you offer ordinary software without AI?
Yes. The result determines the service: ordinary software and rule-based automation do not need AI. If an AI function is essential, we explicitly define that part, its data processing and ongoing costs. AI used during development does not itself make your application an AI product.
What does a revision cover?
A revision adjusts implementation within the agreed rules, inputs and outputs. New functions, new platforms, changed schemas or a new purpose are additional scope. My own delivery errors are corrected without an extra charge. Instructions can be in English or German.
