12 tools TEXT
Format, convert, and transform structured text data entirely in your browser. Need to repair broken JSON pulled from a log, convert a CSV into JSON for a scripting pipeline, or encode binary as Base64? Every tool here processes your data locally and stores nothing.
Master workflows, understand protocol specifications, and avoid production edge-cases.
Master .env formatting rules, resolve multiline string and certificate escaping bugs, manage .env precedence, and prevent secret leaks in CI/CD.
Strip DOM boilerplate, convert complex HTML tables and semantic trees into clean Markdown, slash RAG embedding token costs by 60–80%, and preserve critical context for LLMs.
Transform raw cURL commands and browser network exports into production-ready JavaScript Fetch, Axios, Python Requests/HTTPX, and Go net/http code.
Learn how to convert nested JSON datasets to columnar Apache Parquet with schema inference, Snappy/ZSTD compression, and DuckDB/Athena query acceleration.
Master cryptographic hashing: evaluate collision resistance, benchmark SHA-2 vs SHA-3 vs BLAKE2, prevent length extension attacks with HMAC, and safely verify file checksums.
Resolve minified JavaScript bundle errors back to original TypeScript source code using VLQ-decoded source maps, hidden source maps, and stack trace resolvers.
A comprehensive developer debugging guide to resolving JSON Web Token (JWT) errors: signature mismatches, expired tokens, alg: none attacks, clock skew, and JWKS key rotation.
Master synthetic mock data generation for APIs: build realistic datasets using Faker, JSON Schema, and Mock Service Worker (MSW 2.0) for frontend testing and prototyping.
How to generate type-safe TypeScript interfaces, Zod runtime validation schemas, and JSON Schema definitions from arbitrary JSON payloads.
A comprehensive developer guide to identifying and fixing GitHub Actions YAML syntax errors, matrix build bugs, expression interpolation traps, and concurrency race conditions.
Master the art of reading cryptic regular expressions by breaking patterns down into visual abstract syntax trees, grouping constructs, lookarounds, and quantifiers.
Master HTML entity encoding, numeric character references, context-aware XSS escaping in body vs attributes vs JS, and HTML5 named entity parser rules.
Master epoch timestamps, millisecond vs microsecond precision, RFC 3339 / ISO 8601 formatting, UTC storage rules, and prevent subtle timezone bugs across databases and APIs.
Master JSON formatting, RFC 8259 compliance, JSON Schema Draft 2020-12 validation, safe 64-bit integer handling, and high-throughput Node.js streaming.
Understand the differences between JSON and JSON Lines (JSONL / NDJSON). Learn how to stream massive datasets, format AI training data, and process lines in Python and Node.js.
Master standard JSONPath syntax, filter expressions, recursive descent, and array slicing for REST APIs, mock tests, and log filtering.
Diagnose and fix syntax errors, missing resource limits, selector mismatches, and schema validation failures in Kubernetes manifests before deployment.
Resolve Git merge and rebase conflicts with confidence. Master standard vs diff3 conflict markers, 3-way merge logic, and conflict prevention strategies.
Learn how to convert JSON payloads into robust, idiomatic C# classes and records. Master System.Text.Json, JsonPropertyName, Newtonsoft.Json, nullable reference types, and custom converters.
Learn how to convert JSON payloads into robust, idiomatic Go structs. Master struct tags, omitempty edge cases, pointer nullability, and custom unmarshaling.
Learn how to convert JSON payloads into robust, idiomatic Rust structs with Serde. Master derive macros, Option<T> nullability, rename_all, and zero-copy deserialization.
Master structured outputs with LLMs using JSON Schema Draft 2020-12, OpenAI strict schemas, Anthropic tool definitions, and token-optimized validation pipelines.
A comprehensive developer guide to positional numeral systems, arbitrary-precision BigInt radix conversions, two's complement signed arithmetic, and IEEE 754 float inspection.
Translate Docker Compose stacks into production-ready Kubernetes manifests. Map services to Deployments, host volumes to PVCs, and env files to ConfigMaps.
Benchmark memory-hard Argon2id against bcrypt and PBKDF2, configure work factors for modern GPU resistance, avoid the 72-byte bcrypt truncation trap, and implement seamless on-login hash upgrades.
A developer guide to Protocol Buffers wire format, decoding varints, resolving tag mismatches, and debugging corrupt binary gRPC and Kafka streams.
Understand NFA regular expression engine backtracking, diagnose exponential runtime traps, and fix Regular Expression Denial of Service (ReDoS) vulnerabilities.
Learn how to repair broken JSON from LLM outputs, APIs, and configs. Master automated AST recovery for trailing commas, single quotes, bare keys, and truncated streams.
Bridge the gap between compile-time TypeScript interfaces and runtime boundary validation. Learn how to generate, refine, and enforce Zod schemas from JSON payloads.
Master TOML v1.0.0 configuration grammar, understand arrays of tables vs inline tables, parse Cargo.toml and pyproject.toml manifests, and serialize TOML across runtimes.
Master code diff algorithms (Myers, Patience, Histogram), unified diff patch anatomy (@@ coordinates), side-by-side vs inline comparison, and patch workflows.
Master XML formatting standards, well-formedness rules vs XSD validation, namespace resolution, CDATA handling, and server-side XXE attack prevention.
Yes, all text and data tools on DevFlow are completely free with no usage limits. JSON formatting, CSV and YAML conversion, Base64 encoding, and everything else runs directly in your browser.
Yes. Every text and data tool processes your content client-side in your browser. Your JSON, CSV, or YAML never leaves your device, and DevFlow stores nothing.
The text & data category covers JSON, YAML, CSV, JSONL, and TOML conversion, plus Base64 encode/decode, a text diff viewer, markdown preview, and text case conversion — all in one place.
Yes. All text & data tools work without an account. Open the tool you need, paste or upload your content, and start formatting or converting immediately.