DEV Community: Damon

You Pasted Code Into Chat and It Arrived as Garbage

Damon — Sat, 07 Nov 2026 12:23:41 +0000

Need to Share a Script or Config Snippet Temporarily?

You are debugging with a colleague and need to send them a command, a config file, or a block of technical text. Pasting it into a chat breaks the formatting. Email is slow. You need a temporary link that shows the text cleanly and disappears when you are done.

OnliTools Share Note

OnliTools Share Note lets you paste commands, scripts, configurations, and technical text into a temporary note. You get a shareable link. The note is readable, formatted, and expires after a set time. No signup. No install.

How to Use It

Go to onlitools.com/send-script-to-remote-user.
Paste your text, script, or configuration.
Set an expiration time if needed.
Copy the shareable link and send it.

Great For

Remote support — send terminal commands to a colleague without breaking formatting
Debugging — share logs and configs temporarily during an incident
Quick collaboration — pass snippets between team members without creating permanent documents

Wrap Up

No account, no install, no permanent storage. OnliTools Share Note gives you a clean, temporary way to share technical text.

The Hash Command Is Different on Every Operating System

Damon — Sat, 07 Nov 2026 12:21:27 +0000

Mei was verifying a file checksum before deploying to production. The CI pipeline had failed with a hash mismatch, and she needed to confirm whether the file on her machine matched the expected value. She opened a terminal and typed shasum -a 256 filename, then realized she was on Windows and the command was different. She searched for the Windows equivalent, found certutil, and spent ten minutes reading documentation about hash algorithms she did not need to understand.

The checksum was simple. The tooling around it was not.

The pain, in four layers

Pain 1: hash commands are platform-specific.
shasum on macOS. sha256sum on Linux. certutil on Windows. Each has different flags, different output formats, and different levels of availability. You are checking a hash, not learning three operating systems.

Pain 2: the output is verbose and hard to read.
Most hash commands print the hash followed by the filename, followed by a newline. If you are comparing two hashes visually, you are scanning sixty-four characters side by side, looking for the one that is different. Humans are bad at this.

Pain 3: online hash tools want your data.
You are hashing a configuration file, a password, or a sensitive document. Pasting it into a free online tool means sending it to a server you do not control. For a password hash, that is a security breach waiting to happen.

Pain 4: comparing hashes is where mistakes happen.
You hash the file, you copy the result, you paste it next to the expected value, and you squint. One character off and the comparison fails. The tool told you the hash. It did not tell you whether it matched.

The tool

OnliTools Hash Text applies common hash algorithms to any text you paste — directly in your browser. Choose MD5, SHA-1, SHA-256, or others, and get the hash instantly. The processing stays on your device. No upload. No server.

How it works

Go to onlitools.com/hash-text.
Paste the text you want to hash.
Select the hash algorithm.
Copy the resulting hash.

Why this matters

Mei now hashes her files in seconds. She pastes the text, picks the algorithm, and copies the result. No terminal. No platform differences. No data leaving her machine.

If you are opening a terminal just to check a hash, you are paying a tax on a task that should take seconds. This tool removes the tax.

You Forgot the OpenSSL Flags Again and Copied a Stack Overflow Answer

Damon — Sat, 07 Nov 2026 12:19:06 +0000

Priya was setting up a staging environment and needed API keys for three services, password reset tokens for the test users, and invite codes for the beta program. She opened a terminal and typed openssl rand -hex 32 five times, then realized she had forgotten the flags for the sixth. She searched her history, found a Stack Overflow answer, and copied a command that included a flag she did not understand.

The tokens were generated. The process was fragile. And she had no idea if they were actually random.

The pain, in four layers

Pain 1: generating random tokens requires tools you do not always have.
openssl, uuidgen, /dev/urandom — they work on Unix. On Windows they require WSL, Git Bash, or Cygwin. You are generating a token, not configuring a development environment. The tool should not be harder than the task.

Pain 2: command-line generation is not flexible.
You need sixteen characters, alphanumeric only. Then you need thirty-two characters with symbols. Then you need a UUID. Each requirement means a different command, a different flag, and a different Stack Overflow search.

Pain 3: online generators want your token on their server.
Every "random password generator" website generates the token on their server and shows it to you. You have no way to verify it is random, no way to know if it is logged, and no way to prevent it from being stored. For an API key, that is unacceptable.

Pain 4: copying from terminal to form is where mistakes happen.
You generate the token, you select it, you copy it, you paste it into a form. If the terminal wraps the line, you get half the token. If you miss a character, the key fails in production and you spend an hour debugging.

The tool

OnliTools Token Generator creates random tokens with letters, numbers, and symbols directly in your browser. You set the length, choose the character types, and copy the result. The generation happens on your device. No server. No log.

How it works

Go to onlitools.com/token-generator.
Set the token length.
Choose whether to include uppercase, lowercase, numbers, and symbols.
Click Generate and copy the token.

Why this matters

Priya now generates her tokens in seconds. She sets the length, picks the character set, and copies the result directly into her config files. No terminal. No Stack Overflow. No tokens leaving her machine.

If you are opening a terminal just to generate a random string, you are paying a tax on a task that should take seconds. This tool removes the tax.

Two API Responses Look the Same and One of Them Is Wrong

Damon — Sat, 07 Nov 2026 12:15:01 +0000

Need to Compare Two JSON Documents?

You have two API responses, two config files, or two versions of the same dataset. You need to know what changed — field by field — without reading both files line by line. You could use diff, but JSON is not line-oriented. The same logical change can look like a complete rewrite.

OnliTools JSON Compare

OnliTools JSON Compare compares two JSON documents with field-level highlighting and a concise summary. Paste both JSONs, and it shows you exactly what was added, removed, or changed. All processing happens in your browser.

How to Use It

Go to onlitools.com/json-compare.
Paste your two JSON documents into the left and right panels.
Review the field-level diff and summary.
Copy the results or export the diff.

Great For

Developers — compare API responses before and after a deployment
DevOps — audit configuration drift between environments
Data engineers — verify dataset changes without writing custom scripts

Wrap Up

No script, no install, no upload to a server. OnliTools JSON Compare shows you exactly what changed between two JSON documents in seconds.

The Analyst Needs CSV and the API Gives You JSON

Damon — Sat, 07 Nov 2026 12:12:51 +0000

Need to Convert Between JSON and CSV?

You have a JSON array from an API and your analyst needs it as a CSV. Or you have a spreadsheet and your application needs JSON. You could write a script, or you could use a browser-based converter that handles the transformation in one click.

OnliTools JSON/CSV Converter

OnliTools JSON/CSV Converter converts JSON arrays to CSV and CSV files to JSON directly in your browser. Paste your data or upload a file, choose the direction, and download the result. No upload to a server. No install.

How to Use It

Go to onlitools.com/json-csv-convert.
Paste your JSON or CSV data, or upload a file.
Choose the conversion direction.
Download the converted file.

Great For

Data analysts — quickly convert API responses to spreadsheet-friendly CSV
Developers — turn CSV exports into JSON for application consumption
Non-technical users — convert data formats without writing code

Wrap Up

No script, no install, no upload to a server. OnliTools JSON/CSV Converter handles the JSON ↔ CSV conversion in seconds, entirely in your browser.

You Have the Font File But Not the @font-face Rule

Damon — Sat, 07 Nov 2026 12:10:31 +0000

Priya had a beautiful custom font for her client's website. She had the TTF file, the license, and the design approval. What she did not have was the correct @font-face CSS rule. She opened the MDN documentation, read about font-display, unicode-range, and font-stretch, and realized she was spending twenty minutes on a task that should take twenty seconds.

The font was ready. The CSS was a research project.

The pain, in four layers

Pain 1: @font-face syntax is easy to get wrong.
Wrong format string. Missing fallback. Incorrect weight mapping. A small mistake means the font does not load, or loads incorrectly, or flashes unstyled text. The error is invisible until a user on a slow connection sees it.

Pain 2: multiple weights mean multiple rules.
You have Regular, Bold, and Italic. That is three @font-face declarations, each with slightly different parameters. Copy-paste one wrong and the Bold weight loads as Regular. The design looks fine to you because your browser cached the correct version.

Pain 3: most generators want your font file.
You upload the font to a web service, it generates the CSS, and you copy it back. For a licensed font, that means sending your intellectual property to a server you do not control. For a client project, that might violate the license terms.

Pain 4: testing the CSS requires a live page.
You write the rule, you save the file, you refresh the browser, you inspect the network panel, you check if the font loaded. The feedback loop is slow and the debugging is opaque.

The tool

OnliTools Font CSS Generator takes your font files and produces the exact @font-face CSS you need, plus a live HTML preview — directly in your browser. Upload your fonts, review the generated rules, and copy the CSS. The processing stays on your device.

How it works

Go to onlitools.com/font-css-generator.
Upload your font files (TTF, OTF, WOFF, WOFF2).
Review the generated @font-face rules.
Copy the CSS and the HTML example into your project.

Why this matters

Priya now generates her font CSS in under a minute. She uploads the files, reviews the rules, and copies the result. No MDN. No guesswork. No fonts leaving her machine.

If you are reading documentation just to write a @font-face rule, you are paying a tax on a task that should take seconds. This tool removes the tax.

The Font Renders Fine in Chrome and Breaks in Safari

Damon — Sat, 07 Nov 2026 12:08:23 +0000

Need to Check If a Font File Is Corrupted?

You downloaded a font from an unfamiliar source and it renders strangely in some browsers. Before you ship it to production, you want to verify that the file structure is valid — glyph outlines, core tables, and Unicode mappings are all intact.

OnliTools Font Validator

OnliTools Font Validator checks font parsing, core tables, glyph outlines, and Unicode mappings directly in your browser. Upload your font and get a validation report in seconds.

How to Use It

Go to onlitools.com/font-validator.
Upload your font file.
Review the validation report: parsing errors, table integrity, outline issues.
Fix or replace the font before deploying it.

Great For

Web developers — catch corrupted fonts before they break rendering in production
Designers — validate fonts from third-party sources before using them in client work
Font distributors — quickly audit files for structural integrity

Wrap Up

No install, no terminal, no upload to a server. OnliTools Font Validator checks your font files for corruption and structural issues in seconds.

Your Font File Is 2 MB and You Only Need Forty Characters

Damon — Sat, 07 Nov 2026 12:06:16 +0000

Need to Know Why a Font File Is So Large?

You have a font file that is 2 MB and you only need a handful of characters. You want to know what is taking up space — glyph count, character mappings, OpenType tables — before you decide whether to subset it or find an alternative.

OnliTools Font Size Analyzer

OnliTools Font Size Analyzer breaks down font file size by glyph count, character mappings, and OpenType tables directly in your browser. Upload your font and see exactly where the bytes are going.

How to Use It

Go to onlitools.com/font-size-analyzer.
Upload your font file.
Review the breakdown: glyph count, table sizes, character mappings.
Decide whether to subset, compress, or replace the font.

Great For

Performance engineers — identify bloated fonts before they hit production
Web developers — understand why a font file is larger than expected
Designers — compare font candidates by actual file structure, not just appearance

Wrap Up

No install, no terminal, no upload to a server. OnliTools Font Size Analyzer shows you exactly what is inside a font file and where the weight comes from.

The Font Looks Perfect Until Someone Types a Character It Does Not Have

Damon — Sat, 07 Nov 2026 12:03:30 +0000

Need to Check If a Font Supports Your Language?

You found a beautiful font and want to use it for a multilingual project. Before you commit, you need to know: does it support Chinese characters? Cyrillic? Mathematical symbols? You could install it and test every character, or you could use a tool that checks Unicode coverage instantly.

OnliTools Font Unicode Checker

OnliTools Font Unicode Checker checks font support for specific text, Unicode ranges, and language character sets directly in your browser. Upload your font, enter your text or select a language, and see exactly which characters are covered.

How to Use It

Go to onlitools.com/font-unicode-checker.
Upload your font file.
Enter sample text or select a language / Unicode range.
See which characters are supported and which are missing.

Great For

Multilingual projects — verify language support before choosing a font
Web developers — confirm Unicode coverage for internationalization
Designers — avoid missing-glyph surprises after committing to a typeface

Wrap Up

No install, no guesswork, no upload to a server. OnliTools Font Unicode Checker tells you exactly what your font can render before you build around it.

Before You Ship a Font, Check What Is Actually Inside It

Damon — Sat, 07 Nov 2026 11:50:59 +0000

Need to Inspect a Font File's Metadata?

You downloaded a font and you are not sure what is inside it. Is it a variable font? How many glyphs does it contain? What OpenType features are supported? You could install it and guess, or you could inspect the file directly before committing to it.

OnliTools Font Inspector

OnliTools Font Inspector reads font metadata, glyph counts, metrics, and Unicode coverage directly in your browser. Upload a TTF, OTF, WOFF, or WOFF2 file and get a detailed breakdown without installing anything.

How to Use It

Go to onlitools.com/font-inspector.
Upload your font file.
Review the metadata: glyph count, metrics, Unicode ranges, OpenType tables.
Decide whether the font meets your needs before installing it.

Great For

Developers — verify Unicode coverage and glyph counts before adding a font to a project
Designers — inspect font metrics and features without installing every candidate
Font buyers — audit purchased fonts to confirm they match the description

Wrap Up

No install, no font manager, no upload to a server. OnliTools Font Inspector shows you what is inside a font file before you commit to using it.

The Form Wants a 35mm Photo and You Do Not Have a Studio

Damon — Sat, 07 Nov 2026 11:41:21 +0000

Need a Quick ID Photo?

You need a passport photo, a resume headshot, or a profile picture for an official form. Going to a photo studio takes time and money. You have a decent photo on your phone, but it is the wrong size and the background is your living room.

OnliTools ID Photo Maker

OnliTools ID Photo Maker creates standard ID photo sizes and backgrounds from any uploaded photo. Upload your image, choose the size and background color, and download a print-ready ID photo. Everything is processed in your browser.

How to Use It

Go to onlitools.com/id-photo.
Upload your photo.
Select the ID photo size (passport, visa, resume, etc.).
Choose a background color (white, blue, red, etc.).
Download the print-ready image.

Great For

Job applications — generate professional headshots with clean backgrounds
Travel documents — create passport and visa photos that meet size requirements
Official forms — produce ID photos for government and institutional submissions

Wrap Up

No studio, no install, no upload to a server. OnliTools ID Photo Maker turns any photo into a standard ID photo in seconds, entirely in your browser.

The Form Rejects Your Image Because It Is Too Small in KB

Damon — Sat, 07 Nov 2026 11:35:01 +0000

Need to Increase an Image's File Size to a Target KB?

You have an image that is too small for a platform's minimum file size requirement. You could open an image editor, add noise, re-export, and guess — or you could use a tool that increases the file size to an exact target while keeping the original dimensions intact.

OnliTools Increase Image Size in KB

OnliTools Increase Image Size in KB increases image file size to a target KB or MB while preserving the original width and height. Upload your image, set the target size, and download the result. All processing happens in your browser.

How to Use It

Go to onlitools.com/increase-image-size.
Upload your image.
Enter the target file size in KB or MB.
Download the resized image.

Great For

Form submissions — meet minimum file size requirements for uploads
Printing services — ensure images meet size thresholds without changing dimensions
Quality control — adjust file size for specific platform constraints

Wrap Up

No image editor, no guesswork, no upload to a server. OnliTools Increase Image Size in KB hits your target file size while keeping the image exactly the same dimensions.